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I agree! As a non-expert, I've also had good luck with NetworkManager, but wouldn't recommend systemd-resolved yet if you use DNSSEC:

Mostly right. Article never mentions /etc/hosts , which is still largely a thing, and works wonders in difficult cases ( and makes other difficult cases much worse to debug)

Because /etc/hosts is not really part of the chain handled by resolver or nss-dns. It is handled by different nss module which usually has higher priority.

one reason resolv.conf is/was so sticky is that gethostbyname (and friends) is a libc thing and pretty low-level

Problem is, modern browsers do things differently yet again. So the insanity continues, just on different levels.

browsers are operating systems in user space. They will continue to replace kernel parts.

Technically, the existing dns resolving mechanism is a part of glibc, so it is userspace already.