It's also really easy to have high quality audio! The author recommends a "podcasting" microphone, but a $35 standalone headset mic[1] is almost as good and much easier to use. If you want to hear a comparison, I got kind of obsessed with this problem at one point and took some comparison recordings here[2]. (You need a standalone mic since most headsets, even really nice ones, have really bad mics because most heads…
The booming, echoy audio you get in most zoom calls from people sitting 4 feet from their microphone is a little aggravating. If you'd like to help your colleagues hear you better and want something subtler than a large microphone on a big boom arm then go for a lavalier microphone. See https://www.sweetwater.com/store/detail/ME4--sennheiser-me-4... for one example, but even a $10 microphone from Microcenter, Amazon…
It amazes me how, even now with so many people working remote, how few of us take audio without even a modicum of seriousness.