I'm not a software developer, so this is a real question:

Can it really be so hard for maps apps like @CoMaps, @organicmaps, and #OSMand and #MapsMe etc to agree on a common link format when sharing locations?

@ilumium @CoMaps @organicmaps the problem is, if Osmand or Comaps gave you a open standard geo: link when sharing a location, the vast majority of people that got that link wouldn't be able to do anything with it. GMaps and Apple maps chose to not support it.
@janjko @ilumium @CoMaps @organicmaps exactly! The geo: URI should be that standard, and it is already a documented standard. Android partially implements it, just enough to say it is there. But a functioning geo: standard would break Google Maps' lock-in, so of course they don't fully support it. For example, some URL schemes like https:// mailto: tel: are made clickable by AndroidOS itself for all apps. Somehow, geo: got left out...
@eighthave @janjko Yeah I see the challenge. So generally it makes sense to include both the geo: link and an alternative I guess. But on my end I cannot open that in @CoMaps of someone sends me their location from @organicmaps e.g. via Signal. Maybe it's indeed an Android limitation, not a maps app problem? 🤔

@ilumium @eighthave @janjko @CoMaps @organicmaps

I've recently shared a location from CoMaps on iPhone to a friend with an iPhone and I heard no complaints. She does not, I am fairly certain, have CoMaps nor Organic Maps installed - Apple Maps certainly.

@chiefbongo Hm, that is good to know. It may of course be that your friend simply copy pasted the coordinated (the geo: link) and pasted them into the Apple Maps search field. That is what I have to do every time I receive an OrganicMaps link via text message.

@ilumium

possible, I did not ask.

But you are right, it is overdue to get an ISO or IETF standard for this.