Everything you need to know about using Lumbus eSIMs
All iPhones from iPhone XS, XR (2018) and newer support eSIM.
Most modern Android phones with Android 9+ support eSIM, including:
On iPhone: Settings → Cellular → Add eSIM
On Android: Settings → Network & Internet → SIMs → Add eSIM
Official Apple guide: support.apple.com
Note: Menu names may vary by manufacturer