You should just test run it from a bootable usb.
Install steam. Mount your NTFS drive which contains your windows games. If you have sims on steam use steam. If not take a look at lutris before doing any of the above.
Your experiment ends when you’ve tested all games you want to play.
Now: You cannot use NTFS (windows) drive for games, although you did it in the experiment long extended usage is discouraged.
So you will need to find a way to transfer your games to a different formatted drive. (ext4, btrfs for example)
If you don’t need that advice you will eventually run into frustrating issues.
I specifically said this advice because dual booting windows with Linux is a terrible idea.
Although you are right, if you USB read/write is slow it will be a sluggish experience.