I am sure about that.
Alfredo Camillo, the owner of Camillo's on 5a Av died. His daughter inherited the restaurant. She did not want to run it so she sold it to a family friend. The chef at Camillo's on 5th Ave today is the same one they always had there. Same old chef, same old location, new owner.
Manuel Limon built the condos and restaurant El Timon on Av. Quintana Roo near 30th. The pandemic put him in a bind so he sold that property along with his beach club and other businesses on Cozumel. The new property owner (a friend of mine) rented the restaurant space out to Alfredo Camillo's ex-wife, who decided to open a new restaurant there using the name Camillos but with a new chef. New chef, new location, new owner, but same old name as the one on 5th. Maybe she poached some of the old waiters, I don't know.
The old place on 5th then changed its name from Camillo's to Camillo's Seafood & Drinks after the new restaurant on Av. Quintana Roo started using the old name Camillo's, which may not have been registered, (I don't know that for sure).
They are not associated with each other.