So, @map220v, update, I managed to alter that kernel setting, by unpacking super.img, editing init.rc, repacking and flashing (confirmed and it sticked).
After that, I could direct-install the latest canary Magisk successfully, and boot, but although I keep root, there's no way to make any module work.
Actually, after I attempt to install them via the Manager app, they don't appear on the installed module list... and the logs don't show any useful info.
I'm trying to flash only AP, but every time, after he finish sending super.img, it stacks at userdata.img and red message appear on the screen saying "Only official released binaries are allowed to be flashed(SUPER)", any idea how to avoid this issue? Now I need to restart and I get the blue screen saying to use Smart Switch PC to restore, but actually it's enough if I flash the BT.
PS: my phone is not rooted