U+A655 CYRILLIC SMALL LETTER REVERSED YU does not match how this font does serifs. There should be no top right serif, for consistency with letters like U+043D CYRILLIC SMALL LETTER EN.
Character data
ꙕн
U+A655 CYRILLIC SMALL LETTER REVERSED YU
U+043D CYRILLIC SMALL LETTER EN
nizarsq
commented
4 years ago 
Font
NotoSerif-Italic.ttf
Where the font came from, and when
Site: https://github.com/googlefonts/noto-fonts/blob/bf20559450ec75aec7a646b208343540a4496262/phaseIII_only/hinted/ttf/NotoSerif/NotoSerif-Italic.ttf Date: 2020-08-01
Font version
Version 2.003; ttfautohint (v1.8.2)
Issue
U+A655 CYRILLIC SMALL LETTER REVERSED YU does not match how this font does serifs. There should be no top right serif, for consistency with letters like U+043D CYRILLIC SMALL LETTER EN.
Character data
ꙕн U+A655 CYRILLIC SMALL LETTER REVERSED YU U+043D CYRILLIC SMALL LETTER EN
Screenshot