Font Manager: a useful graphical font manager
Font Manager is a simple font management application for GTK Desktop Environments.
You can install it with Flatpak or using your package manager (check GitHub page for more info).
Add fonts pressing the ‘+’ button and selecting your TTF font. Disable a font (without uninstall it) by just clicking on its checkbox.
You can only remove (uninstall) fonts installed on your home directory.
You can search, download and install fonts from Google Fonts by clicking on the ‘G’ button, selecting your desire font family and clicking on ‘Download Family’ or ‘Download Font’ for single font variations. It’s that easy.