Videotron Giga Speeds

Thanks! I was looking for proof that someone had actually achieved the ~940mbps that at least one tech had claimed to have seen (while the other techs who visited told me that this speed was impossible to see, and was achievable only across multiple devices, not across any single one -- which I found hard to believe, since Videotron likely then wouldn't market this connection the way they do). That said, even across multiple devices, I can't seem to hit more than 550-600mbps max (and even that much is a stretch).

I do not use the Videotron router (but have tried it -- and it fails to achieve the giga speeds as well). I have a Ubiquity/Unifi set up at home (so definitely considered 'powerful' -- USG for the traffic, mesh for Wifi), and own many devices on my home network that are more than capable of achieving the full 1Gbps (between recent Macbooks, recent iPhone X/XS, Apple TV, etc) However, my tests have primilary been done hard wired directly (through a CAT6e cable) to a PC with a full, dedicated 1Gbps Ethernet port, and even still, I can't consistently get even 500mbps, much less ~1Gbps. I am therefore looking for someone on here who can tell me exactly what they had to do in order to get the full 1Gbps (or 940-950mbps, whatever the case may be), so that I can try to replicate before I call up Videotron and have them send yet another (this would be the 4th) technician to come and investigate my speed issues.

As far as the usefulness of the 1Gbps connection, I actually do large nightly backups to the Cloud and back across multiple devices, and don't like waking up to the backup not being complete - that's why I paid to upgrade from my 200mbps to giga connection in the first place :) Not happy that I'm getting less than half the advertised speeds, but pay for the full connection.