I don't think this is overkill, I think it's necessary. A UPS is pretty cheap compared to the completely-uncontrollable chance of losing power in the middle of working on something. Sure, there's autosave and most things are relatively recoverable, but this is just such a cheap investment (at least, for most people who will be reading this forum, I understand it isn't for everyone) compared to such a scary reliance on something that is not very reliable (which makes me very upset about income disparity, it's something everyone should be able to have).
My power is extremely unreliable so maybe I'm a little biased - we get brown-outs (power drops for maybe 2 seconds and comes back) maybe 3-4 times a year, which is wild imo for what should be a very well-developed area (relatively wealthy suburb of Chicago) but it's a pretty old building so not too surprising I guess. That said I will NEVER have a desktop setup with a UPS, and I encourage absolutely everyone to do the same.
I also have a wireless card so that in an emergency I could tether my pc to my phone for internet if need be, and I highly recommend this as well. It's enough to reconnect and send a couple Slack messages quickly and then disconnect again and wait out an outage, without driving up your data bill. (Just use your phone? Maybe, but I don't have everything installed, and I can't type for shit on my phone keyboard anyway)