You can follow these steps to delete an eSIM on a device. Note that deleted eSIMs cannot be reinstalled.
iPhone
- Go to Settings > Cellular or Mobile Service> under your SIMs, tap the eSIM you want to remove > Delete eSIM.
Samsung
- Go to Settings > Connections > SIM card manager > tap the eSIM you want to remove > Remove > Remove.
Google Pixel
Go to Settings > Network and Internet > SIMs > Erase SIM > Erase.