I'll note that the bandwidth doubled from PCIe 4.0 to PCIe 5.0 (it's now 30GHz).

Dealing with that speed increase is causing a whole lot of problems for all the designers in the ecosystem. It's a bit of a nightmare, but people are for sure using it (in your laptops, in the data center).

We ended up adding some specific features/strategies to the autorouter we're building for to handle those speed. It was pretty hard to get right.