Yes there's a way but it's slightly convoluted. You have to use the web interface or a different app like Jerboa to disable the "Show read posts" function in your profile settings. Then, in Wefwef, once you interact with a post, by upvoting or reading it, and then if you refresh the page, the post will be hidden.
Version 12.0 introduced swipe to hide. This is not automatic but it is definitely better than nothing for your use case?
I actually prefer that over auto hide for lemmy, go back in a few minutes and you'll have more comments to read