Aurora frontend - how safe?

So I have installed aurora playstore frontend from F-droid.
My question : how reliable are the apk’s that come from there?
Are they the same ones that are available in Playstore?
Is there a way to verify the signature?

Aurora Store is an unofficial client for Google Play Store, so the packages it downloads are the same too.

Not sure about the verifying the signature, perhaps Aurora Store devs can answer that.