I used to be a pretty happy Windows camper (I even got through Me without much complaint), but I'm so glad I moved to Linux and KDE for my private desktops before 11 hit.
Things started going downhill after that.
Things definitely went up-hill AFTER Windows 2000.
What on earth would cause someone to say Windows 2000 was a good release? It wasn't even a good release when it came out, and it definitely didn't stand the test of time.
An unsubstantiated insistence that a single human being is the bus factor for a thousand-engineer org?
I'm just as confused as you, everyone I've ever met who liked Windows 2000 went on to love XP SP3, usually with the W2K skin on it.
But you can use group policy etc. freely. I don't know how Win 11 is though
I don't use Windows anymore but iirc the easiest way is to get the E3 or E5 licenses. The volume licensing is "Contact us" pricing
LTSC is also Enterprise, but it's meant for e.g. computers attached to an industrial machine/line that rarely gets updated and such. But it's used by many prosumers as a way to avoid bloat and e.g. keep Win10 for longer