LTSC is the answer (despite what MS "advocates" will tell you) no autoreboot, no MS store, no onedrive, no ads I've had a legitimate copy on my gaming pc for 18 months now without issue aliexpress has an excellent range of grey market keys...
Pro with a decrapifier script like the one you can find on Spiceworks will work a lot better, and allow you to run UWP games too.