content: Just to clarify, "not much" is about 90,000 packages you can apt install on Debian / Ubuntu based distros (plus thousands more not yet packaged), every Android app, every Web-based app, thousands of Windows apps that work through Wine (and soon MacOS), etc. Anything else will require running Windows in an emulator, which is a good thing from a security point of view anyway.  Compartmentalize your desktop so one malicious app can't access / modify things it doesn't have to.  But the vast and growing majority of people don't really need Windows-specific apps anyway.