[fmajid]

The UK has GDS Transport, which can only be used on gov.uk websites, not even internal UK government websites.

https://design-system.service.gov.uk/styles/typography/

The British government may be an omnishambles, but their websites are remarkably clear and readable, specially for an aging population with worsening eyesight.

[CSMastermind]

Building an atlas of these for every country in the world seems like a fun project.