This only tells me that a water cooler running a "stress test" can keep the CPU at 80C. It doesn't tell me what an air cooler gets or that I "need" a water cooler.
Looking at a review for
DeepCool's AK500, a mid-rangeish air cooler, considering it's able to cool 200W and 140W power profiles almost as good as an AIO (the only test it seems to fail is 200W 50% fan speed), I'm pretty sure you don't
need a 280mm AIO water cooler for this CPU.
I've yet to run into a game on my 5600X that pegs it at 90%+ total utilization. Also if we look at what games are played the most these days (which I'm too lazy too do any proper research, so we'll just use
https://activeplayer.io/top-15-most-popular-pc-games-of-2022/ as an example), almost all of the top 10 have low requirements that won't even make a modern quad-core sweat.