Welcome to the community and Happy New Year!
Are you asking whether you can use both the eSIM on iPhone and regular SIM in a different device with the same phone number? If so, then that is unfortunately not possible. Your phone number can only be associated with one SIM (either eSIM or regular SIM) at a time.
However, if you have two plans (ie two phone numbers), you could continue using both eSIM and regular SIM -- one in each device.
Hope this helps 😀