I play it on the Deck and it runs very well for me, that was actually how I played exclusively for the first few weeks. I only ran into problems when trying to do cross-play, as saving between the two is apparently the shittiest experience ever and I just gave up on it. Now I have an exclusively PC playthrough (good-aligned) and Deck playthrough (evil-aligned). The control scheme takes some getting used to, but it’s still really good.