It depends what you mean by ‘security’. Obviously, by introducing more layers, you have more places where exploits can life. However, the biggest threat by orders of magnitude is being tricked into giving stuff up, and that risk will remain constant.

The quality of the search depends on which app you use and how it prioritizes search results, right? I know this is a bit of a tired argument, bit since CoMaps is open-source, you could submit a patch, or at least a bug report.

I’ve encountered the same behaviour on Google Maps on occasion, too.