No worries. So, yes, a user can only update a record they inserted because they will only be able to see records they created. This suits my use case at the moment but I can see the benefits of what you are trying to do and it could be useful for me as well. In my case it would be that if someone in a company creates a record, someone else in that same company would be able to update that record.
I’ll work on that and see if I can get a result.