Something has changed. Last spring we had multiple products that were back-ordered (not in stock). Today, pretty much everything, even the most recent camera intros, are in stock.
A quick browse of B&H showed only the following cameras being in a backorder situation at the moment: Fujifilm X-T30 II and the Panasonic S5 IIX (not yet shipping).
One (or both) of two things must have happened: (1) the supply chain issues got resolved; or (2) demand is down.
So preparing for summer vacations is a little different this year: if you want a new camera, you can probably get it. That’s even true of most lenses, though a few of the low-volume lenses dip in and out of stock, and a few of the exotics are still being doled out.