For browsing? To be honest its diminishing returns post 40mbit IMHO. Sure heavy pages (ala imageboards) might load faster, and good ol' youtube will default to 4k whenever available, but otherwise in browsing, nothing mindblowing.
Parallel tasks on the other hand.. amazing. I upgraded to this connection as im building a plex server anticipating Disney+ and AppleTV+ content, plus other content that id rather download and host/stream locally off my Plex Server.
That works amazing currently, even when the missus is streaming Netflix UHD on the TV and i might be watching a Twitch stream, i get decent (lol) download speeds and the plex server stays updated.