Paperplane is currently using Chrome 88 running on Linux.
The following fonts are installed. Additional fonts can be used via web fonts. Many free web fonts are available from Google Fonts.
Andale Mono
Arial
Arial Black
Comic Sans MS
Courier New
DejaVu Sans
DejaVu Sans Mono
DejaVu Serif
Georgia
Impact
Lato
Liberation Mono
Liberation Sans
Liberation Sans Narrow
Liberation Serif
Roboto
Roboto Condensed
Times New Roman
Trebuchet MS
Verdana
Webdings
Noto
Takao (Japanese)