datos ilimitados

I have 100 Gig of unlimited data on my account. My Question is, is that per line or total for all my lines? I have 7 lines but only 6 are smart phones? I am thinking about upgrading to the Go5g Military Plus for all my lines. I kept my old phone from AT&T and don't have access to Tmobile 5g Service since I think the phones don't accept the frequency T-Mobile uses. So I am trying to see what perks are for going from the Go5g to the GO5G Plus for Military and where it says a new phone every 2?