The issue exists already for many months, at least for me. I.e. was on already on older Windows builds. On the start / end of animation, the window is lagging, it becomes vertically a bit larger, than its normally. Happens with all apps. See attached video. Can you fix this bug? its very annoying. Windows 10 20H2, 19042.804.
https://mega.nz/file/1J9zmIIR#oHSUzGiEJtUy28D4oCEolsuKEj-M9oJIpGaodMG8LCM