It’s actually quite a hard problem for OSM community to solve since you need quite detailed data (stuff like road surface, width etc) and possibly traffic data. Even then, that doesn’t tell you everything like whether it’s a “nice place” to cycle or is dangerous. There are people trying to work on it but it is a hard problem. One can hope it gets solved.

Open Rights Group generally have campaigns and actions you can take. Most the average person can do is raise awareness and write hopeful letters to MPs. https://www.openrightsgroup.org/