Well I grabbed the preview ISO and installed it over Windows 10 on my main system. The upgrade was smooth, all my apps and settings ported over without a hitch. I take that back, only 1 hitch - it didn't like Start10 (Stardock's Start menu replacement). Honestly I forgot I had that. Don't need it, so I uninstalled it. I actually kinda like the new Start menu.
Nvidia also released a Win11 driver today, so games are running great. I'm not a huge fan of the changes to the Windows 11 Settings menus, but I'm sure I'll get used to it.