After s20 and s10 got Android 11 updates our app users start to complain that loading app now takes forever. Issue seems limited to cases when app files are stored on external SD card.
I write small benchmark and it seems that I/O access is now 50-100x slower on external SD card.
More details in issue below
Unfortunately Android support has only Pixel devices to test so maybe here I can find more help. Unless this issue is reason why S21 doesn’t support external SD card anymore…