One thing I might consider is whether you want a tandem OLED monitor. They're out now, but not widespread, and that monitor is not one, and it's one area where OLED monitors are improving significantly. My guess

not following closely

is that they will be more-widespread before long.

The main drawback of OLED monitors on desktops today from my standpoint is that there is some burn-in potential, and the longer one plans to keep the monitor

and you've kept your last for some time

the more potential. Running the LEDs at a lower brightness level reduces the impact.

Tandem OLED monitors use multiple LED layers, which combine their brightness. The rationale is more that it lets one have brighter output

OLED displays aren't presently as bright as LCD displays, and more brightness is nice, especially for TVs. However, it also means that each layer can be driven at less power, helping mitigate burn-in. They're also somewhat more power-efficient, since efficiency falls off at brighter levels.

For me, brightness isn't a big deal on desktops, since I'm not needing to use them outdoors, and they don't need to outshine the sun. And I don't much care about power efficiency on a desktop monitor. But putting off burn-in would be nice.

I haven't seen burn-in on my OLED phone after years of use, but I also don't use my phone as much as a computer can be, and I understand that the longer daily use of computers is expected to be a more-significant factor.

It is possible to get visible burn-in on existing OLED monitors after a lot less than a decade of use:

https://hothardware.com/news/qd-oled-burn-in-testing-one-year-results

There are currently tandem OLED monitors out with five layers.

On a phone, I myself wouldn't worry about it, but I also tend to keep desktop monitors for a lot longer than phones.