>>4456132
Plenty of people do with two primes, and a 50mm alone can work well enough depending on the venue and ceremony, and types of shots you want.
Picrel was wedding this weekend, unlabled were from a manual 50mm. 90mm for parts of the ceremony, toasts, and dances. 23mm for variety more than anything else. All the best shots with 50mm.
I would 100% shoot a wedding with only a 50mm if I had to.