
I have no sympathy for GAFAM, but Mozilla sucks even more and you can’t convince me otherwise.
I mean, you could use the private DNS feature instead of AdAway. No need of root for that. If you want to keep root anyway, IIRC there’s a project called kernelSU, which being “in kernel” is probably less detectable than Magisk. Keep into account that - you would need to unlock your bootloader anyway, which sometimes can be a big “no” for bank apps
I apologize if something is not exact, it’s been a long time since I have looked into it.
I personally use paid ControlD (it has a free DNS as well). Othew9you may try nextdns of Adguard dns.