You can choose for each app whether to follow your system language or use a different language based on your personal preference.
1) Use a different language for a specific app
This allows you to keep your phone's system in one language (e.g., English) while setting individual apps to another language. Go to “Settings” -> “System”->”Languages & region”-> “App languages”, select the specific app > Look for language , here, you can usually choose only one language for this app.
2) Let the app follow your system language
This is the default behavior for most apps. If you don't change any individual app settings, they will automatically display in whatever language you have set for your entire phone system.
Note: Available settings and menus may vary depending on device model and software version.