Backlinks show only links to note, not links to its headings. Is it something you will add later? Without considering links to all headings, backlinks are not fully useful (or vice versa: links to headings in this case are not as useful as they might have been). Thanks.
Had no times to test the new build so far. But yesterday after a short insight it worked for me: a link to a header of a note was shown as backlink of that note. What do you mean exactly? That these kinds of backlinks are shown under the name of the note or are they not shown at all for you?
Strange, I have re-tested today and backlinks to headings appear correctly. I will test further and try to repeat the original bug/condition (if it exists). If yes, I will report back.