I've had mobile internet issuess my fold 4 , tried dual sims and it plays up on both , lose Internet intermittently when making a call or during a call .
Neither Samsung support or vodaphone admit liability , blame each other , forever sending error reports via this app only to be told diagnostics didn't send which I know isn't true as was notified all sent ok , almost at the point of changing to oneplus or maybe Google later this year , it was fine until I was on one ui 6.0 beta last year
Samsung Galaxy Note 10 Plus 5g
Samsung Tab S6 Lte 256gb
Samsung Galaxy Watch