Agree that maps is one of the harder ones to replace and I’ve settled into a few different apps by use case.

Here WeGo has been a nice compromise of having a solid search function, good routing, offline maps, some reviews via trip advisor, supports my local transit system, and has a sane privacy policy even if its not FOSS. Can also save locations accountless.

CoMaps I use as my main offline walking/biking and would love to see the team make more improvements over time.

I use GMaps WV for the random times I still need to use GoogleMaps usually for looking up reviews or as a backup when other maps fail me.

So really Here WeGo is the closest one to one replacement but I still use the other two as the need arises.

Gogoro a moped/scooter company in Taiwan has these. Little stations all over the country where you can swap your battery out, it was pretty amazing.