sorry that's not 16:9 i am not home now - i'm on Asus ROG Zephyrus DUO 16 and that's the main screen ( it has two ) i never use laptop when i'm home @daniele

This seems a quite standard view with balanced font sizes. For most people narrowing the right panel a little would make the content more readable. So it's not a font size matter, but a characters-for-line one.