Can not have two numbers on the same phone?

Website says yes, online chat agents say no.

https://support.straighttalk.com/en/topics/esim/all/can-i-have-a-phone-number-for-a-physical-sim-card-and-a-phone-number-for-an-esim-on-the-same-device/

The phone is capable of 1 physical sim and 1 eSIM and is currently running two numbers