Created attachment 126817 [details]
Seen from LibreOffice
Version as reported by pacman: 2.35-1.
The character “DOUBLE CURLY LOOP (U+27BF)” is not rendered correctly with DejaVu Sans Mono. I see a character similar to a rightwards arrow.
Attached is what I see in LibreOffice.
There's also that website that shows the same problem: http://www.fontspace.com/unicode/char/27BF-double-curly-loop
I can confirm this is the case locally for myself as well.
Also another bug in this range is that the curly loop (U+27B0 ➰ Curly loop) isn't actually mono spaced! It's actually a little wider than the other glyphs.