I’ve got a substantial library of games on GOG and Epic that I wanted to play on the Steam Deck, and I’ve used the Heroic Launcher with some success to access a lot of my libraries on those two platforms, but managing the compatibility per game is a bit frustrating and sometimes after an update things break.
Can anyone else share any success or failure stories here? The only other place I’ve seen this discussion was on Steam itself and I wanted a non-steam take on the practice of running non-steam platform games and what works.
Try using alternative login method, login issue is not platform related. I have very same experience on PC.