They are not open source though; sorry I didn’t see the sub.

HDO Box, Onstream, BeeAnime are quite good. You don’t need debrid or a VPN for them as they’re not torrenting.

You can turn the telemetry and Recall off in the Windows settings. The privacy & security tab has everything.

Copilot can be uninstalled with Revo uninstaller like everything else.

You can remove it. There is actually an “IoT Enterprise LTSC” edition that is fresh from the start, though it may not support the very latest hardware so install 11 Pro then use Revo uninstaller’s Windows apps tab to remove the junk.

I wouldn’t recommend it. Just install ExplorerPatcher to get the old UI back.

The amount of telemetry is essentially the same and most of it can be turned off in the settings.