AFAIK no, I have been playing a couple of games in Co-op with friends and have no problems related with Windows for now, my only mistake was not measure performance before enabling everything.
LTSC by far the best way to use Windows, but W11 LTSC doesn’t exist yet, It’ll release next year source.
I’ll also suggest using a tool like Windows Privacy Dashboard to disable telemetry just in case.
AFAIK no, I have been playing a couple of games in Co-op with friends and have no problems related with Windows for now, my only mistake was not measure performance before enabling everything.