Please consider to add ability to set DoT or DoH for custom provider like NextDNS or AdGuard DNS in Archer AX53. This two providers of private DNS, shares special DNS addresses like

xxxx.dns.nextdns.io or https://dns.nextdns.io/xxxxxx where xxxx are private id's for logs and analytics. 

I know that other router have ability to set DoH or DoT but with limited options. 

More info about ex. Nextdns https://github.com/nextdns/nextdns/wiki