So why do you think Dell lists all the Intel systems in such glowing terms and then more or less describes the Ryzens as "meh, here's some other stuff we sell?" Maybe there's nothing to it. But on the face of it it seems odd, kind of like they'd rather not sell any.
Because Intel and Dell have had a promotional relationship for years, with Intel supporting Dell via MDF funds and other types of support at a level AMD has not. Dell is offering AMD as an option simply because customers have said they want it, but AMD is almost certainly not supporting Dell to the level that Intel is. Dell is not the only system builder on the planet. Don’t like it, don’t buy a Dell. I refuse to buy Dell ever since the Dell laptop I had died and they wouldn’t provide support because I bought it in Canada. Had I bought it in the US, I would have had components replaced because they admitted design faults in a US lawsuit. This didn’t extend to Canada and they told me to go pound salt. Dell makes a garbage product and has terrible consumer support in my experience. If they don’t want to build a decent Ryzen system, I don’t care, because even if they did, I wouldn’t buy it. Stop taking them not supporting AMD personally and just don’t buy their crappy PCs.