This seems like some sort of polarizing issue for some, but the reasons "why not" are totally unclear to me. I'm a regular advocate for detailed and self-explanatory code change "commit" descriptions, and I feel as if I'm in the minority trying to advocate for (at a minimum) proper bug tagging and context links in description for PRs that I come across.

This gets omitted sufficiently often that I have largely given up on requiring it except for noteworthy code changes that I am a reviewer for. It's a very hard thing to get consistent adherence to in my experience. I highly recommend others in a similar boat to at least lead by example and annotate your code changes consistently so you can at least identify relevant changes that you wrote. Getting everybody else to is another story...