EDIT: My apoligies. I just replayed the bug when minimizing. Can confirm this is a duplicate of MCPE-109879 (A very annoying bug by the way)
@OcelotOnesie sorry but I don’t find this a duplicate of MCPE-109879. I don’t have issues when minimizing or change focus to another app. My issue ONLY AND JUST ONLY when switching to another Desktop (Windows 10+ multiple desktops feature). I suggest to evaluate a reopening of my case.
Still not fixed in 1.21.82