Ive used OsmAnd+ for years & I still find it confusing to find specific settings! Thankfully OsmAnd settings can be backed up & exported/imported.
That said, several times in new cities in both in my home country & abroad late in the day, it's found us places to eat, toilets, late night supermarkets etc etc. I was grateful to the mappers & I vowed to do the same in my home city suburb to help any fellow visitors who find themselves here. I kept my word & mapped it extensively though I'll not reveal where.
Several months ago we visited a European capital for a city break, the public transit navigation in OsmAnd was fantastic. The offline wiki articles are amazing when visiting new places.
Top tip: utilise the "Quick Action" shortcut button. Add fuel, parking, parking location, wiki & "show nearest POI". You can toggle them on/off in an instant when needed

Saw a red squirrel on Isle of Wight. Was lucky not to hit the blighter when it ran across the road in front of us. Hopefully the little fellas thrive with this initiative.