I'm not sure why the text under app icons on my home screen is always blurry. I did enlarge the text a bit (by 2 units), but when I scaled the text down it didn't make much of a difference. I did apply a theme but when I switched to another theme, it didn’t make a difference. Also, I have the s20 FE model.
- home screen
Many of Samsung's themes aren't great to begin with, but check that the theme you are using, has been updated to work with what Android version & device you have.
You could also try another theme & see if you still get blurry text.