I like Organic Maps because it isn't full of the social things. Every time I open Google Maps it shows that card at the bottom with "what's popular in your area", full of pictures of people's breakfasts and other nonsense. Organic Maps is free of this noise.

Also, the desktop client on Linux is quite useful.

Alternatives for Windows etc. are Cruiser Maps, a Java application (and also available as an Android app).

All map apps I tested so far were kind of usable but nowhere near Apple or Google maps. Especially for longer trips I often got lost and had to re-navigate by different reasons (voice announcement too late, no lane instructions, etc.).

However, I listed it because it is a "usable" alternative that works offline.

Google maps discover feature is a dumpster fire for fomo driven brain fog