Good day 

We have customer communities with public access - guest user on custom objects that require READ/EDIT

My understanding is that the EDIT will be removed from the guest user profile OBJECT CRUD setting.

I see feedback that this will be handled by apex sharing settings - is this correct?

Basically, guest user will require ability to go back to a custom record that it created earlier in the process, and edit it. It does still own the custom object record.

How are we meant to handle this scenario?