I’ve had mine for over a year and a half, and there really isn’t one. I’ve played so many game it’s hard to keep track. Sometimes I keep going back to a game until I beat it or am otherwise satisfied.
I installed windows on my spouse’s deck because she wanted to use Wemod. It didn’t outweigh the few awesome benefits of using SteamOS in her opinion.
You got the 64 GB. If you don’t want to spend the extra cash for the upgrade, go to steam support and ask for a $50 credit to cover the price drop.
BG3 by a long, long way. It’s not a contest.