Makes sense. I wouldn’t want to have all of my games in one wine prefix. I would like to keep them separate like steam/proton does. From looking it up, it seems the issue is that there is a lot of duplicate data that would need to be deduplicated. Steam supposedly does symlinks to solve this. But, if the symlinks points to /home/user/ as the base then that would break on /home/deck.
If you have any experience with Lutris/bottles. Do they do separate wine prefixes? If so, how do they handle it?