I've been running Solus Linux in a Virtualbox VM and the shared folders work fine. However, I'm running a Windows Host and Solus Guest while you seem to be running a Zorin Host and Windows Guest so that could be an issue.

Solus provides instructions on how to setup a VM and they specify "It is important to uninstall any version of VirtualBox (or VirtualBox Guest Additions) that was not installed from the Software Center or there will be conflicts that will prevent the application to work." so it appears that they've modified the Oracle version.

If you're willing to install Solus it might solve your Virtualbox issues. You should be able to convert your existing Windows VM to a Virtualbox VDI either directly with VBoxManage or with qemu-img (to convert to raw) and then VBoxManage.

FWIW, I'm using Solus because their "Software Center" provides WINE 10.1 so no hoop jumping is required to get the latest version of WINE. The downside is that some of the Linux commands are slightly different.

There's a new VirtualBox release out.

Linux host: Fixed issue which caused VM Selector process crash due to missing libdl.so and libpthread.so libraries (bug #22193)
Linux host: Removed libIDL as a build time dependency when building VirtualBox from source code (bug #21169)
Linux guest and host: Added initial support for kernel 6.15 (bug #22420)
Linux guest: Added initial support for kernel 6.16-RC0
Linux guest and host: Fixed issue with building modules for UEK8 kernel on Oracle Linux 9 distribution

It's been a very long time since I used VMware [Win7 was still new], but they do have a version for Linux and it's back to being free for personal use if that might interest you. Otherwise, in case it helps with the folder sharing, I googled something I half remembered, the Virtio guest tools [I use Virtio network drivers in my Windows VMs].

nmanzi[.]com/posts/windows-guest-on-linux-mint/

pve.proxmox[.]com/wiki/Windows_VirtIO_Drivers

heiko-sieger[.]info/sharing-files-between-the-linux-host-and-a-windows-vm-using-virtiofs/

Until recently, I used VirtualBox to run VM's in Linux. But it fails in the newer Linuxes. Now I am experimenting with virt-manager. It is not so simple to use as VirtualBox under Windows, but it seems to run faster. There is no version of virt-manager for Windows.I use Perplexity.ai to find the terminal commands to install and tune virt-manager.
My three year old Acer Spin3 laptop crashed yesterday, so I installed Zorin OS today as its main OS, and Windows 11 24H2 under virt-manager. I could activate it with the original Windows 10 key I had found with the command C:\\Windows\system32\wmic path softwareLicensingService get OA3xOriginalProductKey

I still have to get file sharing between the two OS's operational, so I use the Swiss cloud service pCloud as middleman for the time being.

tomshardware[.]com/news/live/my-week-with-linux

Linux has its advantages, chief among them that it's more efficient than Windows, along with its disadvantages, mainly that Windows has MUCH better software & hardware support. And Linux can be overwhelmingly confusing, not so much because it's hard, but because you have what seems like an endless number of choices, plus there are different ways of doing things, rather than the single choices dictated by Microsoft. So what's it like making the jump? That's what Avram Piltch at Tom's Hardware wanted to find out, documenting what an average Windows user might encounter switching 100% to Linux. It's a good read.

One thing Avram does not talk about is performance, which can matter a Lot to those on lower powered PCs & laptops, with most writers who talk about Linux claiming it offers a significant boost on lower end hardware. *To me* that's the biggest incentive to switch. I tend to be OS agnostic -- the operating system is a necessary evil to run the main point of it all, your software. So when it comes to the death of Win10, *to me* the logical choice is to run Win11, whether your PC/laptop meets the fake hardware requirements or not. Linux is a viable alternative, but there's no way switching to Linux is as quick & easy as upgrading to Win11, so IMHO folks need a reason beyond Microsoft saying so. That said, aside from cramming AI into Windows in every way possible, there's no crystal ball revealing what Microsoft's going to do in the next year or three, so at some point in the future Linux *may* turn into a necessity.

Moving on to Avram's article itself, I 1st want to mention that the sites for many [most?] distros [versions] have a Live image [ISO] available that once transferred to a USB stick/drive [Rufus] allows you to run that Linux distro without installing anything, and they recommend using it. That might have saved Avram from a 2nd installation. Do note however that not all Linux distros support Secure Boot, so limit the choice to those if it's enabled [it usually is] to save you a little work.

One of the common Linux problems Avram ran into is relatively poor hardware support. For the basics, the keyboard and mouse, I wanted to note that many of these devices have onboard memory that stores how they're configured. Having/using a mouse &/or keyboard with that onboard storage *may* at least partly make up for the lack of factory-supplied software.

And Avram didn't get into VMs [Virtual Machines]. [Here gergn is better versed than I, since I've never run a VM in Linux.] If you have no alternative but to run Windows software in Linux you *might* be able to use Wine [a Windows compatibility layer] or you can use a VM. The 2 biggest limitations are 1) you're running an OS [Windows] inside another OS [Linux] so you're using up some of your hardware resources before you even do anything. And 2) you will not get the same sort of hardware level access to the GPU that you have in the host OS, so software that optionally uses the GPU can't. How viable a VM is as a solution depends then on both the specs of your PC/laptop, i.e., if you have enough hardware resources to spare, and the software itself, e.g., AI stuff is probably out.