How about installing Lurker add-on which enables root and using some Xposed module to keep the wifi awake?
I've installed Lurker but the magisk app is not installed, do you know how to install mannualy?
There is a note about this in Lurker github. Is the last magisk version (20.4) working ok?
"Note 2: MagiskManager icon is, actually, a stub injected by Magisk core. It is intended by the developer to help installing full MagiskManager, but I disable it to stop annoying. Should you need MagiskManager, please install it manually. "
Can someone help?
Thanks