How to upgrade iMac (2020) RAM and save up to $2000 in the process

This past week Apple released what could be the swan song for the current design of the 27-inch iMac. With Apple Silicon-based Macs on the horizon, it’s possible that we’ve seen the last of the current iMac’s design, and with it the end of user-accessible memory that makes it easy to upgrade iMac (2020) RAM.
The current 5K iMac design is unique, because it’s the only Mac machine that Apple sells outside of the $6000 Mac Pro that features user-upgradable memory. Thanks to