A lot of things are like this. Like the Microsoft Edge developers apparently tested the case where you open dozens of tabs, but I often have open hundreds of tabs, all neatly stored in tab groups. Hey, I thought the unification of the tabs and bookmarks concept was cool! Until I tried it. It mostly works, until you try to rearrange the tabs, and then the scrollbar just jumps a random distance after a 500ms delay. Useless.