Samsung Galaxy Z Fold 4 - Software Updates

I've been on the phone with Tmobile several times about this. They are still "testing" it for the z fold 4. The S22 series got it no problem, my Tab S8 Ultra got it(but not my Tab S8+), and I'm sure some of the other Samsung series of phones have probably received it as well. They keep trying to say it's up to Samsung when we will get it or that (in my case at least) the update won't come from Tmobile because I didn't buy the phone through them......both of which I know are not true. I told them that they will end up losing customers behind this if they keep it up.