Valve won't be releasing a Steam Deck with more performance until at least 2025. Given the smartphone market's reputation for disappointing incremental updates, this is the right choice. Valve should, however, throw gamers a bone with a Steam Deck 1.5.
Yeah, with steam deck it just gets improved by improvements in proton, not a lot of deck specific things are done. I’m noticing games are running smoother on my Linux desktop because of this work.