DNS Hijacking (Redirection) implementation

DNS over Plaintext completely banned, DoT and DoH not affected
Celcom: Block port 53 completely except its own DNS servers
Digi: Redirect all traffic for port 53 to its own DNS servers

DNS over Plaintext partially banned, DoT and DoH not affected
Maxis: Redirect port 53 of well known DNS IPs to its DNS servers. Less well known one still works fine

DNS of all types partially banned
Unifi: DNS of mainstream providers (CF, Google, OpenDNS, Adguard, and etc) got banned including DoT and DoH. Less well known one still able to use even in plaintext mode

Please correct if anything wrong