> In my experience Apple's software has been accumulating small annoying bugs for a couple years.

They’ve never not been like this. They don’t know how to write software sustainably and don’t seem interested to learn. They add features faster than they fix bugs. Early on, it was masked by less frequent releases, but switching to an annual cadence made it more obvious. They worked around the problem once by focusing Snow Leopard on bug fixing, but they are just letting the bugs accumulate again now.