This reminds me of the Appls Sim Card introduced in iPads 3-5 or so years ago. I may still have an unused one around somewhere. I've often wondered when this would become a reality. It seems like a fairly simple concept and should be easy to implement. If it actually works properly it is going to be a big hit with all the Samsung users who have been waiting for their esims to be available via updates.

Edited to add: It just occurred to me that carriers like T-Mobile still do not issue esims to Android devices yet as far as I know. This may be a problem unless you can find a way to set up your line on this sim and then move it into your Samsung phone.