I had a similar issue with font rendering in Final Fantasy XI after a system update. What worked for me was setting the Windows display scaling to 100% and running the game in compatibility mode. Also, if you're using Ashita or Windower, double-check their config files—sometimes a small tweak there fixes font problems.
By the way, if you're into customizing fonts or need cool-looking text for any project, you might find this
cool fonts generator super useful. It's free, easy to use, and great for creating stylish fonts for overlays, social posts, or UI experiments.