> Safari is the only browser that does HTTPS DNS requests

Chrome does too. At least going by the reports on our subreddit: https://archive.vn/9o6Jc / https://www.reddit.com/r/rethinkdns/comments/1ox7g21

Firefox has supported HTTPS DNS since v129 (August 6, 2024)

> HTTPS DNS records can now be resolved with the operating system's DNS resolver on specific platforms (Windows 11, Linux, Android 10+). Previously this required DNS over HTTPS to be enabled.

https://www.firefox.com/en-US/firefox/129.0/releasenotes/