The only thing I get actively annoyed about in Windows 10 Enterprise is the forced installation of that onedrive crap. You can remove that by making your own image but that is still scummy as hell and not different to bundling Windows media player, for which they got fined.
Then there is the telemetry that cannot be disabled entirely, but that's a different level of shit. I mean, they do this with Minecraft too [0]...
I lied. While reading the rest of the thread, one more thing came to mind:
Microsoft grants itself several exceptions in the firewall which are restored even if deleted by the user. Stuff like allow inbound any to cortana...
[0]: https://bugs.mojang.com/browse/MC-237493