but now a whole bunch of people are going to stay the hell away from OST paid subs
I have a use case similar to OP’s with my father, and was looking at a solution for subtitles. I was looking at their site yesterday. I guarantee you I will stay away from them now.
I’d absolutely recommend using your own modem and router. I do it and the additional control over your network is more than enough reason to make the switch. Plus, using your own modem, and router usually pays for itself in two years, so there are financial benefits as well.
You will need to make sure you get the right modem for your ISP. You can usually verify which one you need on their website.
This made me laugh
Do you run OSMC in a container on your pi or as the base image installed with the pi imager?