I mean, it kinda is a deck problem, in that it affects the steam deck’s capabilities as a gaming device. Apparently I misunderstood, I thought it was a proton issue where it’s just Palworld leaking memory? If you know what you’re doing you might be able to fix that issue, but for most users it ends on “this game doesn’t work on the steam deck”.
That said, I do believe valve (and all the other contributors to wine, dxvk, etc.) are doing work to make more games work on Linux, and they’ve done an amazing job so far