I'm personally seeing quite terrible things on desktop, here is a snapshot of the homepage: https://i.imgur.com/VfNwqi7.png

Here is a snapshot of the post itself: https://i.imgur.com/61b7ADn.png

To note, I cannot click on any of the buttons in the top-right to control what I could or learn more about this person.

There's definitely something wrong with the scroll performance. I'm seeing bad performance as well on a pixel 8 pro. If I weren't on mobile I'd pop open devtools and check for excessive layout recalculations