[CONTENT-CHANGE] Add mention of offline map apps?

[matkoniecz]

Explain why it should be added

One of potential data leaks is map app, for example Google Maps definitely collects plenty of private data.

Maybe it would be worth mentioning OSM-based maps as partial alternative? Note that "OSM-based" does not mean "free from trackers and not sharing private data", for example any app using Mapbox hosting is contractually obligated to include trackers.

https://organicmaps.app/ and OSMand appear to be promising

Additional Context

Disclaimer: I am heavily involved in OSM, which includes my job.

Content (optional)

I can write something if that would be provisionally accepted and research a bit more (for example I am not entirely sure about Osmand)

[Lissy93]

Sooo sorry for the delay in responding.
This is an excellent idea, and I will push an update in Lissy93/personal-security-checklist#133. Have also included your other suggestions in that PR :)