I had gig up / gig down fiber at a previous house… it was amazing… never went down always has bandwidth no matter what I was doing or who was streaming. I (used to) do a lot of uploading to users for media and I never had a hiccup.
Get it… and get the fastest you can afford. You’ll love it.
Also no they won’t be paying attention anymore than a standard isp. Tho… if you’re.worried about it… just get a decent VPN.