Microsoft has released a new Xbox app for mobile devices in beta form, with a completely rewritten infrastructure plus the addition of Xbox console streaming as a feature for all users.
Windows 11 22H2 build 22621.160 (RTM) gets File Explorer Tab navigation
tabbed file explorer
Windows 11 in the Dev Channel fixes Windows Security app issues, and more
windows 11 insider preview
Xbox beta RSS
Microsoft has officially announced that PC games on the Microsoft Store can now include mod support on a bring-your-own-mod basis. A few Xbox Game Pass titles already support it, with more on the way.
Microsoft is starting to add support for game mods in the Xbox (Beta) app on Windows 10. You can enable mods for select games, but there's no way to get mods from the store itself.