A few years ago, there was a discussion about an
folder. I also found a patch that adds
XDG_BIN_HOME deep in the
mailing list's archive (which, by the way, is still not merged
I've made a patch similar to the one adding the
bin directory based
on the discussion mentioned above.
Mailing list discussion: https://lists.freedesktop.org/archives/xdg/2019-August/014183.html