Fdroid version (play store version is practicallythe same so it doesn’t matter). Be it 5.9, 5.10 or 5.10.1 (I guess) none worked.
Samsung Galaxy M31, stock ROm, non root, Android 11, UI 3.1
It was resolved in latest version for many but Android 11 was left aside.
Also, we are requesting firewall since a very long time. This is a very simple feature that should be provided with blokada. Some apps don’t deserve internet at all.