Does the Galaxy S10 have an eSim?
All phones
No. The Galaxy S10 cannot install an eSim, so it cannot use Departing.
The S10e, S10+, S10 5G, and S10 Lite are the same.
Check in 10 seconds
Open the phone app and dial *#06#. If you see a number labelled EID, the phone supports eSim.