Просмотр шрифтов в вашей системе - View fonts on your system
[ О приложении ]

Fonts shows you the fonts installed on your computer for your use as thumbnails.
Selecting any thumbnails shows the full view of how the font would look under various sizes.

Fonts also supports installing new font files downloaded in the .ttf and other formats.
Fonts may be installed only for your use or made available to all users on the computer.

Источник
Репозиторий: flathub

FlatPak: Fonts [Utilities]