At the ISP level, does it really matter that they can sniff my queries/SNI? They're just as capable of seeing the IP4/6 I'm connecting to and rDNSing that to know the hostname. SNI gets them past the multiple sites on a single IP, but even encrypted Hello might only hide your activities in the vanishingly rare instances where IPs are actually shared. The obvious analogy is sending postal mail to an address without the recipient's name: it's still pretty obvious who you're communicating with.

Maybe I'm just bitter because I've found DoH (and even DoT) to be slow and occasionally unreliable. Even using Cloudflare, which is my fastest DNS, I see my local caches hitting strange resolve errors or in the minimum, durations 4-10x slower than good old UDP.