Roblox and T-Mobile Home Internet

My son has been reporting the same issue with being disconnected from Roblox since we changed to T-Mobile Home Internet. When I called T-Mobile support about this issue they told me quite frankly that "T-Mobile Home Internet is not broadband" and that "T-Mobile Home Internet is not suitable for gaming". The T-Moble representative, unprompted, further informed that "T-Mobile Home Internet is not suitable for working from home" and "T-Mobile Home Internet is not suitable for streaming". I was then offered to cancel my service and return my equipment with no penalty.

I was quite shocked at how frank T-Mobile support was about the limitations of service and how quickly they offered to cancel service. Personally I think that traffic to Robox servers is being 'managed' by T-Mobile, but why fight them if they aren't interested in supporting these use cases. I was told that T-Mobile is working on a 'broadband' offering, but I don't think they know what broadband means.