After more than five years using an increasingly underperforming PC, I have now returned to using a Mac. I'm a bit rusty on the Apple shortcuts, but I'm sure in time I will remember them and regain my Mac form. It is nice, again, to be using a fast computer.
The problems with my PC, which had been multiplying exponentially in the last two years, were enough for me to consider a new computer. This time, I went back to the Mac. Not sure why, but it felt right.