Thank you for posting your concerns to the Community.
We have not been advised on if eSIM support will be extended to the Samsung S20 5G.
If this changes in the near future we will keep the community updated.
PS: Have you tried activating eSIM at a Rogers store? Please book an appointment at a store nearest to you to see if you can activate eSIM on your S20. Please keep us apprised of the outcome.