I definitely agree. I have a Switch (but not a Steam Deck) and to me this looks like ergonomically it’d be… off… is probably the best way I can put it.

I already have issues with my hands cramping if I hold the Switch for more than about 45 minutes, but putting it in one of those “cases” seems to remedy the issue. That might work for this too, but I’d imagine the cases would be kind of awkward.