they are asking customers to shift to their WARP client instead.
I just use WARP, and just send plain text DNS over it to 1.1.1.1. I believe this is superior to DoT or DoH, because the client don't have to do any sort of handshake for each request and everything still goes over UDP while still being encrypted. If it's setup correctly, one.one.one.one/help will say you're using DNS over WARP.
Actually I've got a weird setup where I've converted the WARP client to a wireguard profile and I run it on my router, but only route 1.1.1.2 and 1.0.0.2 through WARP. That way I can still traceroute 1.1.1.1 while debugging my network.
I'm not sure if this is the same issue, but one of my monitors had VRR supported on a NVIDIA card, but not on an Intel card. I ended up modifying the EDID to enable
extd_timgand it's been working fine since then. I wrote a blog post a while back here.