based on my test the Cloudflare DNS 18.104.22.168 (No Malware or Adult Content) does not make Adult Content filter if the DNS query is made in DoT (DNS-over-TLS).
So, if I query 22.214.171.124 via UDP port 53 (normal DNS) the Adult Content filter works (I tried www.youporn.com and the answer was 0.0.0.0).
But if I query 126.96.36.199 via TCP port 853 using DoT (DNS-over-TLS) and I lookup for www.youporn.com I have the correct IP of www.youporn.com.
Is it normal?
If yes, when 188.8.131.52 will works with No Malware or Adult Content also for DoT (DNS-over-TLS)?