windowscentral[.]com/microsoft/windows/the-transition-to-windows-app-is-complete-good-luck-searching-for-that-name-on-google
techcommunity.microsoft[.]com/blog/windows-itpro-blog/windows-app-updates-reliability-productivity-and-security-improvements/4494681
learn.microsoft[.]com/en-us/windows-app/whats-new?tabs=windows
Support for Remote Desktop ended March 27,2026, though it will continue to work until Microsoft decides to remove it sometime in the future. The 3rd link is to a page with links to download the Windows App installer & its Store page, since as the article's author points out, try searching for Windows App. ;)