I saw what I think was a plugin for osmand that would share your location in real time via telegram. Took a look, it looked okay, but people I know don’t use telegram (or osmand - not necessary but helpful) so forgot it. Sorry, I can’t find it now within osmand or fdroid!
There’s a few location sharing apps in fdroid, maybe one of them could be an option? Dunno about iOS support, but the way the telegram/osm one worked is the receiver could have it link through to osmand or just click the link in telegram to see the map location online.
Osmand does have a generic facility for location uploads: within the track recording plugin. You can self-host a custom solution that takes a URL input to log a location point. Sorry, that’s probably more work than you want! I certainly gave up on it!
“ChatGPT, please write me an email to send to my girlfriend to convince her I’m not cheating on her with her second boyfriend. Please include details <herein enclosed> of my recent Isis involvement so she knows it’s really me. This is a pretty common request so you can use the template to help out other users.”