Not a direct fix but what I've always done is interact with every post I scroll past. Either up or down depending on how I feel about it. If I'm not sure it just gets a free upvote so if I switch devices I know what I've seen.
Not really a good solution, because sometimes the topic just does not interests me, so I don’t want to read it. But because I don’t care, this doesn’t mean that it’s down vote worthy. Also I won’t upvote because I didn’t read it.
This is the primary reason I’m using Voyager as my default, it doesn’t do hide on scroll but it does have a swipe gesture to hide. I don’t really want to upvote or downvote things just because I personally don’t care about them.
The Apollo option I used was the button/gesture for “mark everything read up until this point.” It allowed me to dismiss a large amount of stuff at once, not having to click every post. But it didn’t do so automatically before I wanted it to. Marking things read as soon as they scroll into the viewport is a little more aggressive than I want, personally.