I had an engineer visit who confirmed that there are no SNR issues. We had SNR problems a couple of years ago but that was long resolved.
They also confirmed that I am on a HUB 3 already.
Finally, the engineer suggested that it might be an issue with channelling and set this to static.
Despite this, I am still getting dropped frequently. I have also noted with some testing that this affects twitch streams I may have open as well as my VPN through work.