If everything ran just as well as it would on Windows I would switch too. But I think that will be a long time off, even if developers decided to natively develop for Linux. It seems better than like a decade ago, but development and support is really slow.

That said, I've been using W11 for a couple of years and I haven't run into any ads in my day-to-day office and home computers, I've seen others mention ads in Windows too, but I'm not sure where they are. And you could just use a fake e-mail and name for a Microsoft account if you need one for a Windows installation.

I'm not saying everyone should use Windows, but choosing gaming on Linux seems like it's just people making it very difficult for themselves. Last time I ever tried it was a long time ago, but there were constant hardware issues, driver issues, game crashes and other problems that I could just not be bothered.