21 Ultra. Just updated to 4.0. Always keep my font on the smallest there is. After update it was almost normal font size but settings shown it was set to the smallest. Directly changing size in the settings didn't work. To reset it, I had to change resolution from 3200x1440 down to 2400x1080 and back up to 3200x1400 and everything resized back to what I wanted. Just incase anybody else experiences a similar issue.