I have a OnePlus Pad 2 and it’s a brilliant tablet. The stylus is good and I use it with Obsidian and Excalidrae for notes

I think OP was asking how do they interact with their desktop environment to get the eSIM information to the modem

An eSIM is a code number that is used to identify a phone account, and replaces a SIM card. On my phone I installed an eSIM by scanning a QR code. OP wants to know what’s the equivalent in a Linux distro, if there is one. It’s a good question, but I don’t know the answer myself