On Ubuntu 22.04 LTS clean install
Repo clone in a ros2 workspace. Building through colcon build.

The compilation fails, lots of errors related to fmt and inability to format. It seems that something is not backward compatible with fmt. If I force the fmt version 8, it compiles. Unfortunately, the v8 is no available in apt packages, requiring a specific install just for micro ros agent.

EDIT: Ubuntu 22.04 is still in fmt v8 but it is fmt 8.32 which already fails compiling. v8.1.0 works.