Which carriers are you thinking about?At least both go down the lifts without needing folding wings.
Ark Royal had 2 lifts 45x22ft and one 45x25ft and the Illustrious class were designed around lifts of 45x22ft.
The Venom had a wingspan of 32'9" and a length of 24'2". Gladiator was wingspan 32'3" length 27'5". Both are too big for those lifts (well you could just fit the Venom sideways on one of Ark's but you then have difficulty moving it off the lift and around the hangar). When Illustrious borrowed two Sea Gladiators from Eagle in Nov 1940 for the Taranto Operation, they were kept as a deck park aft of the island.
I agree that they would fit the lifts of the earlier carriers without folding wings. Or the forward lifts of Indomitable, Implacable and Indefatigable with their larger 45x33ft forward lifts accessing their upper hangars only. But to get the numbers needed on the carriers, folding wings are really a must. Here is a photo of Indomitable's upper hangar in 1943 when she carried 40 Seafires plus Albacores