[donutpepperoni]

Would switching to an eSIM based phone offer any sort of risk mitigation in these scenarios?

[aesh2Xa1]

An eSIM will prevent a physical swap. However, an eSIM will not prevent a port-out of your phone number.

To defend against port-out you should enable port protection. The name of such a feature varies by carrier, and T-Mobile seems to refer to it as "Takeover Protection."

[testfrequency]

Zero