I have a strange issue with Adaway 6.0.3 (root). The installation of the root file fails because it can't write into /System partition. It tells me that I should install Magisk Systemless Module. Magisk 24.1 with Systemless Module is installed (and Note restarted of course). When I switch back to v5.12.1 it works well. Maybe a Kernel issue?
With AfWall+ I also had a really strange issue. When installing the current Play Store version (3.5.3), it told me that it doesn't have root access (which wasn't true). I don't know how I solved it but I tried older versions from Github (3.5.0 and 3.5.2) and it worked. Then updated to Github version 3.5.3 and updated inside Playstore again to 3.5.3. Really strange, but it works for me.
There were 2 issues I switched back to LOS 18.1, but there they also exist. Then I figured out that older versions worked and switched back to LOS 19.1, since Android 11 has massive storage restrictions.
Compared to LOS 18.1 the performance is much worse. A fresh installed 18.1 runs ok (all animations set off), a fresh installed 19.1 has many lags compared to 18.1. Does anyone have same behavior?