Welcome to the board.
I am of a different opinion, but I have never owned a Vinyl boat.
I have had Urethane or bladderless for about 25 years.
I do suck the air out of all 6 of my boats every late fall season and have been able to use them if needed in freezing temps
I just bring them indoor over night then inflate.
A couple of my boats are 17 years old and never a leak, still look new.
4 of my boats are in a duffel bag till needed, the 14' inflatable is rolled up on a shelf as in my Stand up Paddle board.
My stand up pontoon (Fuzion) is however inflated year round. Because of it's lack of size it is hanging from the rafters in our unheated garage.
Just a second opinion from this ol' gal.