Lets start with the positives.
It controls well, too, and never presents any issues with the quick suspend/resume feature.
That does include the Valhalla roguelike mode DLC, but still.

Sadly, these are petty complaints compared to what else can go wrong with Ragnarok on a Steam Deck.
Yet at least a workaround exists there.
Every time, without fail.

I dont think I need to spell out why this a profoundly daft bit of login creep.
To my eyes, that just isnt worth the input lag and occasionally blurred motion that it adds.