Unlike some other audio recording software, TunesKit Audio Capture does not grab the audio headed for your speakers or headphones. That means that it can work when the audio drivers are crippled for DRM – when speaker input isn’t available as a Windows recording device. In that case recording whatever’s playing often means installing a generic fake driver. It also means less flexibility – you tell the app which software you want to use to play the audio, it launches that app, then waits for the audio to play so that it can start recording. When you record speaker input OTOH [using other software], you might get more creative, using filters, equalizers & such that change the audio you hear.
As noted in the comments, TunesKit Audio Capture doesn’t record hardware audio inputs either, which of course means you can’t record directly from a mic. You *might* be able to use any app that plays the mic [or line-in] input however and use TunesKit Audio Capture to record that.
To its credit TunesKit Audio Capture does let you set higher quality sampling & bit depth for your recordings than many other recording apps, and can save a fair number of audio formats, though they might have included wave 64 [.w64]. It includes some GraceNote & minor editing capabilities. The app’s Help says this about multiple tracks: “Note: This smart audio capture supports recording several tracks at the same time, meaning you can operate other programs to play different music and it will record all sounds while saving the tracks independently.”
When it comes to audio recording, the software you use isn’t really going to do much to influence quality. Some software lets you add filters &/or FX, but the actual quality depends more on the hardware used, & with PCs, the amount of electrical noise. IOW software can matter when it comes to working with the audio files you’ve already got, but the basic quality of the recorded audio, not much. Audacity can use something called "Windows WASAPI loopback recording", & in their docs they say: "WASAPI loopback has an advantage over stereo mix or similar inputs provided by the audio interface that the capture is entirely digital (rather than converting to analog for playback, then back to digital when Audacity receives it)." *If* the TunesKit app uses a similar method for its recording, that would mean less chance of the recording losing quality due to the device's audio electronics. And *if* it uses WASAPI, it might also include the limitations the Audacity docs mention.
manual.audacityteam[.]org/man/tutorial_recording_computer_playback_on_windows.html#wasapi
Installing TunesKit Audio Capture adds the program’s folder, with 167 files, 4 folders, taking up ~66 MB. An empty folder is added to the user Documents folder, and you get a folder in C:\ Useres\ [UserName\ AppData\ Local\. I recorded just over 100 new registry entries – one key for uninstall, HKCU keys for Tidal & TunesKit, and a HKCR Tidal key.