Home Internet and wifi extender

I see a lot of people talking about a 10 device limit on their T-Mobile home Internet gateway.I see a lot of people talking about a 10 device limit on their T-Mobile home Internet gateway. I think this is long gone now. We have had our service for over a year now, with this gateway shown. We have done a lot of Wi-Fi home automation this year, where every lightbulb switch and receptacle is its own Wi-Fi device, and have over 55 devices online, at least, right now, and will be adding quite a few more in the future, probably around 75 to 100 devices. Our Gateway is a Nokia 5G 21 gateway kit hardware version 3TG007398.