DoH is now being used by malware to covertly communicate with C&C servers, blending in with all the other encrypted traffic routed through Google DNS. QUIC is quite similar in that the goal is to mandate encryption and obscure traffic and content from security devices. The only supposed benefit to consumers is for websites which need to load an excessive amount of ad content and scripts, again, doubling down on their core competencies at the expense of everyone else. HTTP/1 is more than serviceable for any website that isn't, at minimum, shoving ten times more ad content than actual content.
Honestly, I think that's a core misconception Google has managed to sell people on: That enterprise middleware is somehow bad and malicious, as opposed to the ad company that distributes malware as a primary revenue stream which tells you that the middleware that catches it is bad.
If network traffic is on my home network, I have a right to inspect it. If network traffic is on my work's network, my work certainly has a right to inspect it. To be blunt, with some regulatory supervision assumed, if you're using an ISP's network, they absolutely have the right to manage their network. Why in the actual heck did anyone buy Google's narrative that somehow enabling them to convert the Internet into an end-to-end encrypted ad delivery and spyware platform was a good idea?
The marketing acumen to pull that off, now that's legendary.