I keep forgetting how to add a favorite to OSMAnd, so I've recorded this show to remind myself how to do it.
Search for a location, either in the Hamburger Menu or clicking the Magnifying glass icon
Type in your address and select the place
The screen will appear with a Locator Pin
On the bottom click Add and Save
You can optionally include them in a group
About https://en.wikipedia.org/wiki/OsmAnd
OsmAnd is a map and navigation app for Android and iOS. It uses the OpenStreetMap map database for its primary displays, but is an independent app not endorsed by the OpenStreetMap Foundation
Links
https://osmand.net/
https://f-droid.org/en/packages/net.osmand.plus/"