It simply depends on if you delete the eSIM or not, it gives you the option to keep or delete them when you restore your device. If you don't delete it then the eSIM will continue to work after the restore.
@KW-89 It's supposed to be possible to keep the esim, it gives you the option to delete or keep. Whether it works or not I wouldn't know. If it doesn't you'll have to "purchase" a new one as @eddieO noted. See No. 4 here
@KW-89 unfortunately not. You will need to login to the Public Mobile app on your phone and go to Account and then Purchase SIM card. In there you will be able to select eSIM
