Firefox 106.0.4 and previous, MacOS 12.6
After clicking on share or comments button, going back to the main timeline shifts the position by anywhere from 2-7 posts. Android Firefox does not seem to have this issue. This creates disruptions that are avoided only by opening any link in a new tab.
Attached is a screen recording of the issue.
Please let me know if you'd like further info. Thank you for Cohost!