@fell
It IS supported, F-droid app just needs a helper service for privilege escalation to do it, check this out: f-droid.org/en/packages/org.fd
I'm currently using other app with F-droid that requests privilege escalation from Magisk, but that helper service worked for me in the past, you have to install it to your system partition with something like TWRP and voila!
@fdroidorg