I got a silicon case from a friend so I don't know the brand, but I can confirm that my deck fits in the case with the silicone on. I rarely use it however, I just tried it on now to answer your question.
Underlectual
joined 1 year ago
Nice! Glad to help. The silicone is kind of flimsy on my model and makes the Steamdeck kinda unwieldy so you might want to try it out before you buy. That's why I don't use it myself.
The plastic on the deck seems strong and I figured that's good enough for me. When I carry it around I use the case.