while scrolling down the edit history, the last line/field stays under the bottom of the navigation bar. I reckon such issue could be overcome by excluding from the "main frame" the real estate under the bar.

Maybe that also happens in other screens—I just so happen to notice in this instance.

Another thing I've noticed is, when reading the initial edits, there is this region where the window tends to move itself either up or down—to a tabulated position of sorts. Honestly, it is a bit unsettling attempting to focus on the text while reasoning on what and why was done to the article and all that, while the text keeps jumping.

Both these instances are also observed in the β version (2.7.50467-beta-2024-01-22). I have attached screen shots of the same two examples for both versions.