Cellular data not working on certain social media apps, but works on safari and iMessages

I’ve had this problem since last year, my phone data does not work for insta, snap, etc. apps that require data to use. I’ve contacted apple and my carrier, both which did not know and could not help me. my cellular data is toggled on in setting as well as in each app. its odd because it works when I turn on VPN and I was unlimited data. kinda sucks because I bought a new iPhone thinking it was my phone that was the problem, but idk. please help if anyone found a solution! I’ve read threads of other people with the same problem, but no solution.

Did you find a solution??