We run Enterprise 2016 LTSB on our endpoints at work, with group policy turning off all the phone home / telemetry that it possibly can (and some other tweaks).
Still not 100% fullproof, and I wouldn't even run that at home.
They are rumored to come out with a "Workstation OS" based on Server 2016. I might consider that... but it might just be better to run Server 2016 Standard. I'll have to load some games up on it and see how it does.
Get your games from GOG DAMMIT!