I don't often use multiple monitors at once, but when I do, I'm using multiple computers too. I'm mainly doing this to test websites on multiple operating systems as my desktop machine runs Linux Mint and my work laptop has Windows 10 on it. Of course I could use Virtualbox to run any number of operating systems, but having a separate device makes things a bit more simple for me. What I despise is using the laptop keyboard and the trackpad. Wouldn't it be nice if I could use the desktop keyboard and mouse on the laptop too?
Working at home instead of the office did not decrease the number of meetings I attend. It might have even increased them a little as I can't just turn to the guy next to me with my questions. The company where I work uses Google Meet for internal and external communication. It works pretty well, but with a few extensions you can make the experience even better.
Even if you are stuck in the home office during the pandemic, you need to be super organized if you want to be a successful project manager. Not only it is a must to know everything about your projects, but you also have to be accurate and fast when retrieving and processing data to earn the trust of your boss, coworkers and clients.