Real device testing

Hello Everyone,
Quick question from your experience.

I’m building an application (iOS, Android) it’s almost done, and I did my testing (in my personal android and ios device).

Now I wonder, do I need to test the app in multiple other devices (using AWS Device Farm)?

I don’t use too many 3rd party plugins (only capacitor-analytics and cordova-plugin-purchase)

What is your thought about doing more testing in real devices?