Agreed, but that doesnt fix the issue. Had some issues with ff on a govt site, sent a complaint and got basically "use chrome lol" as a response.
I don't own a Deck, but from trying on smaller screens (1366x768 laptop) fsr is practically indistinguishable from native at "quality" preset. "Balanced" becomes a bit blurrier, but still pretty much playable, without sacrificing UI legibility