Note: This post is a part of my exploration to get familiar with the new Site Editor features that are expected to be included in the next WordPress 6.4 release. This learning post is still in active development and updated regularly.
A new fonts management feature is expected to be included in the WordPress 6.4. The new feature serves as a comprehensive fonts management font-end interface that functions globally, irrespective of the the current theme, akin to the media library. The font library allows users to access a wide range of installed fonts and as well upload fonts of their preference, allowing them to customize fonts choices for each individual theme within the Site Editor.
Contributors are asking that users test this feature so that any bugs or feedback can be used to improve it before the WP 6.4 release. I thought about putting this feature to the test.