Why is the mobile/Steam Deck UI so terrible at sorting?

Please add the ability to properly sort by tags in both mobile and Steam Deck library views. Kinda crippling that it's only available (as far as I can tell) on PC desktops.

Yes, I searched the UI. Yes, I checked Google (results point to 8-11 year old threads on this forum).

Even if it "technically *pushes up glasses* exists", it's certainly not obvious.