Not sure I'd risk having one for desktop use though.
I've had 4 replacements, currently on the 5th. 2 were replaced for burn-in and 2 replaced for defects. The burn-in can still happen within just 3 months (see the recent Monitors Unboxed QD-OLED burn in video) but how noticeable it is depends on individual settings like brightness etc. All of the details are talked about in the QD-OLED threads for both the new 32" 4K panels (gen 3) and the previous Gen 1/2 34" ultrawide. I use mine for WFH and productivity so much heavier usage than most but these come with 3 years burn in warranty with next day replacement so it's mostly a non issue.
To anyone with a QD-OLED< even if it's Gen 3 -- Do yourself a favour and run
BetterCleartypeTuner, set RGB to 2200 and apply then close the tool. This removes the text fringe issue in Windows.
Also do not install the Dell/Alienware software. None of that rubbish is needed. Follow the recommendations in the mentioned threads and all's well.