@Ubuntu_ard Are you looking at non-English speaking countries? OpenStreetMap is meant for navigation, where street signs would be looked at frequently. Having English street names in Iran is a pretty useless idea.
If your system language is non-English that could be causing it as well. In which case you can set the locale from terminal and run Maps from there.
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.