Enabling Cloudflare breaks DNS-over-TLS, port 853 issue perhaps?

I have a simple VPS running Adguard Home which I use to process my DNS requests. I have the web portion protected by Cloudflare to prevent malicious access to the admin panel. My cert is provided by Let’s Encrypt. Whenever I have Cloudflare enabled I can only use DoH, DoT and DoQ will break. What might be the cause of this?


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