Question about Microsoft Surface Thunderbolt 4 Dock

It's the throughput that you get via a 5G tower, for example, these values usually always fluctuate a little if the speed is measured via fibre, there are always fluctuations there too. I always measure the speed with the fast.com website, which I find more ideal than the other usual websites, but a router that could also offer an internal speed test, for example, would then of course measure directly at the source.