Just as a follow up, Junior's and Mrs. Supe's Lenovo desktops have been running flawlessly, and have been running the games we play on "epic" settings without any perceivable hiccups or frame rate drops despite having "only" a 1660 Super card in them.
However, I have not been so lucky, and have encountered FPS drops and even audio issues with my older machine on games that SHOULDN'T be taxing the systems with graphics, but are optimized pretty poorly by small developers so they are resource hogs.
So as not to be one-upped by the wife and kid, and due to the fact that when I'm sad/stressed I buy totally unnecessary shit, I ordered a new machine (through BJ's of all places) because its the only way to get near-list pricing and availability on graphics cards these days. So I have a liquid cooled i7 unit coming with a GTX 3070, 800W PSU, 16GB RAM, and 1TB SSD, which will handle pretty much everything I could possibly need (including 4K and VR) until way down the road when 8K gaming becomes the standard rather than the norm. I will probably add another 16GB of RAM and a WiFi card to the old machine and move it into the theater room in case I want to game or fart around up there.
I also upgraded to a Razer Basilisk mouse for gaming since I don't like corded mice, and a set of HyperX Cloud II headphones/mic, and both have been great.