A new feature was discovered in Google's recent Android 13 QPR2 Beta release, which may allow smartphone users to manage and transfer eSIM profiles more easily. These functionalities may become available for Galaxy smartphone users in the future.
The latest addition to Android 13 (QPR2 Beta) may allow Android smartphone users to transfer an eSIM profile from an old phone to a new one, thus allowing users to switch to a new eSIM-enabled smartphone easier. In addition, Android device users could also gain the ability to convert a physical SIM card profile into an eSIM profile.
As discovered by @MishaalRahman, the transferring eSIM profiles feature is being worked on for Pixel phones and other GMS (Google Mobile Services) devices. Therefore, it may become available for Samsung Galaxy phones in the future (but not devices like Huawei's, which are non-GMS).
It's a stretch, but given the Android 13 beta timeline, it is at least possible for the upcoming Galaxy Z Flip 5 and Galaxy Z Fold 5 to be among the first Samsung phones to support these features. Then again, there's also a chance that they may be limited to Pixel devices initially and that Samsung and other Android smartphone OEMs may have to wait a while longer before they can use these features, assuming they'll exit the beta and go live, in the first place.