This is an assumption on my part, and may have other explanations. I’ve noticed sometimes the feed ‘jumps’ down a post while scrolling, and I’m assuming this is due to a background feed update combined with a sort order that puts a new item anove where I was currently scrolled to. If that’s the case, having an option for manual refresh only would be great.
If that’s not it, there might be a bug somewhere but it’ll be hard to find I guess, as it happens quite rarely.
And I don’t know if it’s useful but I often find the ‘jumping’ is pretty transient—it will happen once but then scrolling up and down over that section is smooth.
However I just found this post whose comments are full of images, and this one jumps pretty consistently for me—thought it may help as a test case if you didn’t already have one :)
https://feddit.uk/post/11886380