Why do newer versions of Unity have problems with framerate never exceeding refresh rate despite vsync settings being turned off?

First pic is 2019 unity, second is 2021 Unity, but applies to unity 2020.1 and 2020.2 as well. Is this a bug? ![alt text][1] ![alt text][2] [1]: /storage/temp/174579-2019-vsync.png [2]: /storage/temp/174580-2021-vsync.png