Upgraded to PureFibre 1.5 Gbps download but speed remains 1 Gbps (and I think I know what I'm doing)

So the Telus technician I've been dealing with -- but doesn't know how to move forwards since he doesn't have the equipment himself (although his manager is threatening to change this, but who knows how long that will take) to test above 1000 Mbps and the mother ship says everything is configured properly -- suggested trying the speed test feature built into the Telus Connect App:

I hadn't seen this before so I thought I'd give it a try. Not sure what it does, but hoping it reports on the speed between the modem and the internet via fiber, and not between my Samsung phone and the booster via wifi. Anyway, when I click on that option -- and I've clicked half a dozen times -- then the app always crashes and I have to restart it 😞 Once the phone popped up this short message:

That's the only buggy feature I've seen in the Telus Connect App [1] because I've been using it to track new wifi devices connecting. Does this feature work or crash for others?

[1] Except when I was first upgraded to fiber. The app didn't recognize the new system. Had to call Telus support. They told me to uninstall and re-install the Telus Connect App and then everything started working with the new system.