That bothered me too! I kept windows 10 from updating to windows 11 until I know, how certain of my programs run (specially FSDS2, FSDS3 and also CFS2, my old and still in use programs and games)
I personal run Windows 10 (64) on an SSD with only windows and all programs I use, nothing else.
-Before I updated from Windows 8 to 10, I made a Clone of my windows 8 SSD on another plain hard drive as backup, then I updated to windows 10 and looked if everything works. I think this is a save method to update.
I run CFS2 and all other games on a separate hard drive and there on a separate Partition to keep the games save, -and it’s easier to make a backup.
wolfi