Oh I see. It definitely can be plug and play but you are right that there is a chance for it to have some quirks. I think it can vary from TV/monitor to what cable or version of Steam OS you’re currently on.

I only say this cause I have 2 and one is treated like a Switch. Very rarely it will fail to connect right away unless it gets restarted, which I think is related to the overarching bug that is present that people talk about.

For the most part though it is plug and play, some of the problems are the same that switch owners might run into (CEC handshake issues, something Nintendo has also released firmware updates for). But also yes, not 100% plug and play with the exceptions usually being specific hardware, sometimes because of firmware.