Physical, but at some point I have to decided between commodity or find where to put another little box, honestly I ran off of space so I mostly just buy physical the games I genuinely want or when they are cheap and I am feeling like making space in my room.
Digital for all their consequences is pretty practical and I assume more people at some point prefer that over collecting, at the end I guess is a bit of both for me and once again, a lot of people.
That being said, Nintendo published games are always exclusively physical for me because they barely go in discount in the eShop and if I gonna pay 70$ for a game (50$-60$ now apparently) might as well buy it physical.