Not sure about desktops.
Dell is in that game too.
What AMD need for consumer computers is to get in the laptop oem build.
Many folks are posting that there is "no reason" to buy intel. Actually, Intel is going to keep market share if you can't actually buy these great AMD product in a prebuilt configuration.
Will they show up eventually? Sure. But it can take a surprising amount of time for something like this to come down (I'm hearing murmurs of issues with heat / BIOS etc). I hope AMD is working closely with whomever is most ready / has a long track record with them (Lenovo comes to mind) to get these to market in a config that a business can buy.
Even the first generation Ryzen CPUs are amazing for multitasking and general computing workloads. Zen 2 is quite a bit further beyond that, and is priced highly competitively. That's something that can translate into increased productivity along with savings, but it's going to take some time before OEMs are really ready to take the plunge rather than just dipping their toes in.