How about following the precedent of all of these users of /.well-known/
https://en.wikipedia.org/wiki/Well-known_URI#List_of_well-kn...
robots.txt was created three decades ago, when we didn’t know any better.
Moving llms.txt to /.well-known/ is literally issue #2 for llms.txt
https://github.com/AnswerDotAI/llms-txt/issues/2
Please stop polluting the web.