I have gmail. The address used was my gmail address (firstlast@gmail.com), but "first.last@gmail.com". Gmail does not distinguish a difference between these two

I have gmail. The address used was my gmail address (firstlast@gmail.com), but "first.last@gmail.com". Gmail does not distinguish a difference between these two addresses, so it went to my inbox. The email was addressed to me as "First Last". I have a fairly rare first/last combo and I am not aware of anyone in software engineering who shares it with me.