Reviewer records first drop in overall brightness after 21 months of burning in his QD-OLED monitor — but the 2% decrease isn't likely to be noticeable

https://www.tomshardware.com/monitors/reviewer-records-first-drop-in-overall-brightness-after-21-months-of-burning-in-his-qd-oled-monitor-but-the-2-percent-decrease-isnt-likely-to-be-noticeable