Too much space allocated for minTieDistance when tie overlaps noteheads
The change about tie spacing in MuseScore3 from in MuseScore2 is wrong.
The tie between each single note generates unnecessary space in MS3. You can find the tie is longer than the minimum tie length. MS2 doesn't generate such space in this case.
I think MuseScore should expand gaps only in the case the ties connect from chords to chords. MuseScore should achieve "Better Placement" in this picture.
See this topic.