Previous spikes in demand for firearms and ammunition took years to resolve, after the perceived issue was over. The issues driving this spike in demand for firearms and ammunition are far from resolved...so, I'm frankly stunned that you would think that "this would have been over months ago" when the spike happened months ago and those issues are very much with us.
Gunbroker has plenty of firearms for sale. You can get what you want.
Expect to pay a 30% premium on new firearms, and up to a 50% premium on popular used firearms. I see no segment of the marketplace that is immune. Shotgun, rifle, revolver, pistol...the prices are up on new and used in every case...