New comment by Sichelmondprinz on void-packages repository

https://github.com/void-linux/void-packages/issues/44193#issuecomment-1570656914

Comment:
It seems like manually installing `dejavu-fonts-ttf` fixed this issue.
Making sure there is at least one font available under the name "monospace" when installing/starting wezterm might be a good idea.

Until then I'll close this issue and leave the answer here for other people having the same problem!