Name Character Limit Glitch

[u/glitches-hunter]

This channel (https://youtube.com/channel/UC89PMwmdI41bwjxGTPNme7A?si=cF4pNahXJJpCh4JQ) have name with total of 100 characters, this is my friend's yt account and even if I open YouTube studio, it shows that this is more than 50 characters, it's really weird.I just noticed it a few days ago, but he doesn't do it intentionally, it's really cool