Entering GPS coordinates in calendar
It's 2021 and the problem still persists.
Previous questions:
https://discussions.apple.com/thread/8096976 (2017)
https://discussions.apple.com/thread/250110042 (2019)
Basically, the code for finding GPS coordinates exists, since after pasting them in Maps you get a proper pin. Entering them in calendar should show a map with that pin.
MacBook Pro 13″, macOS 11.1