No idea.
I don’t have access to any CRT TV. I also don’t remember ever hearing it on CRT PC monitors as a child, only on the TV. If I did, then it was just much quieter than the TV.
What I found fascinating at that time was, that it was so noticeable to me, but my parents didn’t believe me at first, when I mentioned it. I had to prove it to them. To me, that was just a normal noise.
Like growing up with an additional sense, and assuming that everyone else has it too.
I noticed if the TV was off or on (muted and black screen) without looking at it, but my parents did not.
Do you really want auto-updates for your games, or actually just want updates-on-demand? Or just a notification with a button to update the game?
Personally I dislike Steams auto updates, because I want decide when a game should be updated. I might have mods installed, only mobile internet or a myriad other reasons not to be forced to download and apply an update right at that moment and instead just play the old version.
For saves, I normally just use syncthing. I have regularly issues with GOG and Steam cloud saves, and syncthing works well enough,
Here is the problem: Even paying will not get you out of ads any longer. You bought a TV, well the manufacturer will show additional ads on it. You paid for Windows or a Mac, well Apple or Microsoft will advertise additional services on it, same with Android (Google services) or IPhone.
Just spending money to be ad free is no longer enough, because companies try to find ways to extract even more money (or information to sell others) from you, now that you have proven to have some. Either be it additional subscriptions or vendor lock in. They never have enough money, they just want all of it.
So to live ad free, you have to avoid using any product with profit interest or research every company you deal with on what its incentives are, which is very hard or impossible for many people.
Here is a tip though, try to find hardware that comes without bundled software, and find open source software to use it with.