@minotus Then it's probably either a Chromium issue or an Acrobat one.

@heinrichii For reasons I don't understand, this works:

GDK_SCALE=2 opera (wiki.archlinux.org/index.php/HiDPI#Xfce)

My display is not HiDPI.

@talbot-belmont Thanks

Try installing the ms fonts first
sudo apt-get install ttf-mscorefonts-installer

I just looked at that section and the list of font names is already sorted alphabetically. Perhaps you can provide a screen shot of what your system is showing. I am using the Opera GX LVL1 (core: 64.0.3417.150).

5637de23-abbb-45f4-9553-f1e7045a5254-image.png