I don’t think you’ll be complaining on any of them. Was having gigabit nice? Of course, but 350 is plenty. Most services won’t even transfer that quickly to you and you can run a lot of video streams on that.
But the main way to tell would be if your router has a traffic meter on it since it has all devices going through it. Otherwise if you’re mainly on PC you can use the task manager to see how much is going on and out
Means TV, but it’s a subscription version of YouTube for leftist content and it’s a cooperative. The Means Morning News channel is 80s/90s cheesey and a decent news summary that ends with the Rich Dick award