Sarawak here (on unifi). My network uses self setup multi DNS path with enforcing encryption so no biggie but I tried some nonetheless. Quad 8, 1 are fine atm, while Quad 9 traceroute returned !X.
router DNS redir to pihole(Not the shitey FiberHome) -> pihole to internal(bind9 plain local to Adguard Proxy DoQ) -> self hosted tunneled whitelist DNS quicdoq DoQ, Adguard DNS DoQ (upstream quad 101, others.)
I have a similar setup, it will not be immune if they start implementing in your area. They were rolling out by areas before they reversed course. Your upstream will stop working unless you proxy it through another network