Serious question. I'm thinking something happened and they just stopped making them. They are all GONE everywhere. Not a single one to be found that isn't from a scalper. I've never seen this before from any CPU release. It has to be either 100% COVID related or they just decided to get out of the CPU game and make T-shirts instead. I don't buy this "derp demand" argument for a second. This spoiled 1st world baby wants his damn bottle and he wants it NOW!
I assume you mean the new 5000 series CPU's as 3000 series are in stock everywhere. So...
Covid pandemic a problem? Yes. But worldwide demand is incredible and unfortunately AMD is not in control of their supply of the 7nm wafers they make them from. Apple (and others) have bought up all remaining capacity from TSMC. In the face of shortages speculators (scalpers) buy the easily obtained on-line CPU stocks and re-sell at markups over MSRP...look on eBay or your country's equiv.
Look at brick-and-mortar computer stores:
Microcenter for instance has ample supply of the most popular 5600X. And lastly: pre-built computers can be had with both 5000 series CPU's and new GPU's (Nvidia 3000 series, AMD 6000 series) because they buy direct from distributors. A proper 1st worlder might buy one of those and part-out the unused bits.
Oh yeah, and lastly my personal belief is AMD is favoring the enterprise and cloud server market for their 7nm chiplets. They seriously want to make money, now, and that's where the big bucks are. If you have limited ability to increase your supply you favor the customer with the deeper pockets and the longer 'memory'. Just good business.