@apps
I have, but for quite a while already.
Before, the jumps mostly happened around the "load more messages" bars in the timeline. (Not sure how they're called. I use Fedilab in German.)
The jumps used to be pretty bad, then there were less for a while. Recently they often happen out of the blue while I'm in the middle of reading a post. My tolerance for frustration is pretty high, but sometimes it's hard to find where I left off. 😅