Problems connecting to apps

I have the iPhone 11 Pro Max. I've had it for 1 year and within the last 6 months I've had problems using data. For instance, using Google(Gmail, Maps),Snapchat, Instagram, Facebook, and Youtube. I've noticed that it's only those apps that have problems connecting. Others like TikTok, Netflix, Spotify and others all work perfectly fine. When this first happened I called my wireless provider but every time I called it was always the same answer saying that the service was still the same and that it was probably my phone. Even they thought it was weird that a 6 month old phone would have problems. But I say if it was the phone why only certain apps are having trouble connecting and not all? I’ve done multiple network resets as well and sometimes that works but not always. I just don’t understand how everything was fine and then all of a sudden it wouldn’t work. I’ve had service with them for years and never had a problem. Also my husband has an older iPhone and he never has problems connecting. We also don’t have wifi here at home so I know that couldn’t be the problem. Can anyone tell me if you know what could be the problem? I don’t know too much about tech stuff.