While these suggestions are good suggestions, it's also important to note that beam subdivision is incorrect in many instances. See https://sourceforge.net/p/testlilyissues/issues/5547/
In case someone wants to take up that issue, it might be best to link to the current issue collection on GitLab
https://gitlab.com/lilypond/lilypond/-/issues/5547which would be "the right place" (next to the -user and -devel lists of course) to discuss ideas and thoughts.
Lukas
