Yeah, IIUC, the Windows 11 thing still won't let you access native OS functionality (eg. you can't access files on the filesystem, don't have access to system tray, file type associations, etc). You are pretty limited in what you can do if you can't access any of the system APIs. Compose for Desktop solves this problem by giving you full access just like any other native application, instead of being constrained to the APIs of a virtualized environment.