User:Hrs70 wrote on 22:22, 31 March 2023 (UTC):

When I select some text that is at the top of the screen the page rapidly scrolls upwards, making me lose control of navigation and I end up selecting a bunch of text. So selecting any text if it is at the top of the screen is damn near impossible, I have to scroll the text toward the middle and then make my selection. I absolutely hate websites that mess with anything to do with scrolling, it makes me dizzy.

See mw:Talk:Reading/Web/Desktop_Improvements/Archive9#Text_selection_scrolls_rapidly_upward for more details.

The discussion is archived so I'm creating a task here. It is an annoying feature. It happens in edit mode, too.