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.

If you have to go back for the user base, use a fresh Firefox profile with no extensions except uBlock Origin and Jshelter then combine that with a mobile hotspot without a VPN.

Also, when you create an account, do not use the sign up button in the top right. Instead click a random Reddit thread on Google, then click reply on a random comment and then create the account.

DO NOT use your main email (including Gmail’s +1 or exam.ple variants) or phone number.