How to comfortably hold a steamdeck for different playstyles

I love tinkering with steam input; It's, imo, one of the most best aspects of the steam deck. However, everytime I use the back buttons (L4,L5,R4,R5) many times in a row, it's inevitable for my hands to go numb. The way I typically use these buttons is by replacing the face buttons, which means they might get pressed a lot of times (I never bind them to a button I need to hold though, because that seems a bit too much) (I never spam it either). Seeing how easily my hands go numb from that, I doubt they're meant to be used that way. I had to get used to holding the steam deck normally, but managed to have it be comfortable in my hands, so I was wondering if I can do the same here. Is there a way to hold a steam deck so your hands don't go numb from using the back buttons?

I know there are accessories that make these buttons easier to press and likely more comfortable, but I'm concerned those will hold down the buttons while the steam deck is in its case. I still want the luxury to put my steam deck in my case without that worry, even if it may be irrational.

Comfortable ways to hold the steam deck whilst mostly using the trackpads is also appreciated!

I'd appreciate any answers!