For more on the setup I used to juggle Catalina and the Big Sur betas side-by-side as I tested Big Sur and wrote, edited, and took screenshots ... Mac that I also use for traveling, and the 2015 ...

Big Sur is a big deal. The OS picks up where Catalina left off, further rationalizing Apple’s product lineup through design, new ways to bring apps to the Mac, and updates to existing system apps. The ...