I'm in Florida, and we had the same issue being unable to find bread flour. I bake periodically and usually have a container partially filled with bread flour ("strong flour" in the UK), but I used it all up around the holidays and hadn't replenished it. Yeast is also very hard to get too, but fortunately, I'd bought a jar of instant yeast so I had a decent amount left.
I cannot say scientifically that it's a boom in home baking, but anecdotally, many friends are posting their cooking and baking feats while staying at home. And, concurrently, many of the baking YouTube channels have experienced a giant leap in subscriber numbers, including the excellent "Bake with Jack" out of the UK, who also reports he's sold out of merchandise after a brisk increase in orders.
The gardening forums and channels also have seen increased subscribers. The sad thing is so many in central and south Florida have popped onto local gardening groups, unaware that they've bought plants and seeds that it's too late to grow here in the heat.
Interesting times!
-- Ann