is anyone having network issues with galaxy z fold 3??

I've been having issues since the last update  happened. I've spoken to several agents via chat and then I got a ticket put in with Tmobile. They recommended, factory reset, change of SIM card or get a samsung warranty replacement.  I went into the first tmobile store and they acted like "oh no problem, lets get you into a new phone, oh wait, no you have to go to the tmobile store that you bought the phone at so they can bring up the original reciept for an exchange" . I go to the store I bought the phone at and they said "that representative didn't have a clue what they were talking about. We cannot just exchange the phone. You  have to call samsung for a warranty swap (or whatever terminology). They did switch out my SIM card and it didn't work. Ugh. So frustrating. Anyway, I scheduled a call with samsung tomorrow and i'm really hoping they are receptive to my concerns. Honestly, at this point, I want a new model because I've got a sneaking suspicion that getting another phone won't fix the problem. I just got this phone in Sept 2021!!! Has anyone gone through the warranty process, received another FOLD 3, and have the issue fixed?