I would not expect them to overcome any technical difficulty via technology. Their IT department are among the worst I have seen in my lifetime.
For months they pestered me to convert to their unlimited bandwidth plan. That plan of course eventually throttles you once you exceed the allotment.
I rarely exceed my current paid plan and they cannot shorten my usage.
Guess what they can change? The unlimited plan!
They eventually stopped asking and I bet they moved me to their garbage without my permission. I opted out of multiple requests.
In the end, I can move to quite literally their same service from a different name and pay half. Guess what I am doing now?
I am certain they will ask, fail and force the behavior. VPN? They will get rid of you eventually or throttle you.
T-Mobile used to be a good company, but the purchase they went down faster then Tysons opponents.