Although “custom Windows ISOs” are a big security risk, AtlasOS isn’t a “custom ISO” and running a random binary off some guy on YouTube is arguably just as bad. He has next to no knowledge of Linux, neither do any other “Linux YouTubers”. Trusting someone like that with your Linux machine is risky at best.
“clean driver install”, which heavily suggests you installed nvidia drivers, probably from the website. That issue is entirely on you.