HP last year managed to accidentally revoke their macOS code signing certificate. I'm not sure how much software was affected, but as far as I know all HP software for Mac, including printer drivers, was broken (CRLs are updated automatically even if you have automatic software update disabled)
I remember this issue from a while back. Some update happened, and then wireless printing stopped working on some iOS devices. It happened to a colleague's macbook, and disabling IPv6 on the Brother printer fixed it for us. I can't remember where I found the initial advice, but here's someone else mentioning it: https://discussions.apple.com/thread/250584298
Any sufficiently large discussion of printers will beget a number of ad-hoc support sub-threads.