Sound issues.

I have an iPhone 14 promax. Ever since I got it, I have had issues with the sound going out. I can look at TikTok or YouTube videos or whatever and the sound just won’t work on them. There are sound on these videos but they won’t play on my iPhone. Even if I just watched videos 15 minutes before and I’m just going back to them again this sound works fine the first time and then it won’t work again I have checked my settings I have cleaned my speakers I have checked the silent button on my phone. It’s not any of that. I is anyone else having these problems?