There’s like… no downside: all upside.
Edit: I exaggerated, of course. Below this are some downsides that individuals have experienced. But personally, my experience using Firefox on desktop for Mac has been all upside. If everybody who can just tries it out, you might be surprised at how friction-free the change is.
I canceled as soon as they said they were going to be cracking down, months ago. I pay for 4 screens, and on principle, I want to be allowed to use them without being nagged or scolded or banned. So if they don’t want my business on those terms, there are plenty of other streaming services with just as much content I like.
I came here to post this and I wouldn’t have clogged up the thread with this useless comment except for your username. I salute you