If you use Windows Quick Assist to support remote users, they will now have to install an app for it from the Windows Store. Once done it behaves the same but will update etc just like other store apps. Not a big deal until you need to support a remote user through that initial store install.
Below shows the old app and the new store app (right) once installed.
The Open Microsoft Store button on the old app opens the install page in the store.
Clicking Get downloads and starts the installer but it requests Administrator permissions to install.