This seems to be a side effect of UX: show the user status next to the username in the group's view by ZogStriP · Pull Request #36482 · discourse/discourse · GitHub, which removed the font-weight: bold within .name-line
I also noticed that recently the way name and username are shown on groups and badge pages changed. They used to be in different lines, but now they are in one. I didn’t check, maybe that is also because of this change.
This is a screenshot of /badges/3/regular today
and this is how it looked in April
