Hi, my main PC has a 4670k @ 4.1. During lockdown I upgraded my monitor from a 1080 60 Hz to a 1440 144Hz adaptive sync one not just for better ergonomy for working from home but also for gaming in the near future. Since I sold my last graphics card when my daughter was born, I also borrowed a 750Ti as a place holder to drive that monitor at resonable refresh rates (60Hz, instead of onboard 30 Hz). Then a month later I found a guy selling unused 1070Ti's that he was planning on bulding a miner and putting them into...
Anyway, since I have a big backlog of games from 2014-ish that I plan on playing when a window opens here and there, I have to say that all the upgrades are pretty brilliant and am very satisfied to have done them. Since it's all older games, the CPU copes pretty well, and DOOM was just a beautiful gory experience. So yeah, if you play older titles and do anything other than game, the upgrade to 144Hz is well worth it. Just dragging windows aroud or even the cursor is so much nicer with this new monitor. In fact, everything is smotther, especialy scrolling. Oh and since it's ultrawide, I can also enjoy some movies on it. It's pretty sweet for me.
My old monitor was an IPS so I did not expect to see much better picture quality, but I was quite pleasently surprised that even picture quality was way better. So, all in all, for me, it works and am very satisfied.