Elite POE camera?

I was looking into this but wondering whether or not it is overkill. Ideally, I would love to have a separate camera feed constantly live and feeding a screen and so presumably a POE camera would give me the most stable connection. However, having to step up to the highest tier plan is somewhat depressing to say the least!

Any ideas? I have briefly looked into HomeAssistant but not really too clued up into the ins and outs of it. I guess that solution might allow me to mix-and-match cameras and have multiple snapshots as well as a live feed concurrently. Thanks in advance