there hasn't been a shortage for a while now, but you probably didn't hear about it because shortages ending isn't considered newsworthy.
it's the same with sriracha, you can pretty easily find it for msrp now, but lots of people still think it is hard to find because the last thing they heard on the topic was a news article about bottles selling on the gray market for $40-$80 back in may.
I check every so often, and checked before I posted that too. First hits I got from the Raspberry Pi website were all sold out, so I presumed it was business as usual. Cycling through a few more shops, I see it is available in some places now.
Those RPi4 supply problems seem to be mostly fixed. And RPi5 may come from different production line(s) such that it's available in quantity even if the 4s were not.
It's a lot better in the last few months. If you're still looking for an RPI 4 then sign up on a waitlist at place like adafruit and you'll get one soon.
