One bit of speculation I've read before is that the display brightness on some displays is stored in a cheap EEPROM chip without wear leveling, and constantly writing new brightness values throughout the day will wear it out in a short time span (years)
I’ve read that in a lot of places over the years and even got afraid of it when my LG 4k flickered a bit one day.
But I’m sure I’ve went way past the 100k writes speculated limit with Lunar’s Smooth Transition and by testing Lunar 6 hours a day almost every day for the past 4 years.
It’s possible that this EEPROM issue might not be an issue anymore. Lunar has thousands of active users and there are zero claims of a monitor failing because of it.
It’s also possible that it’s just a problem waiting to happen and I’ll get sued to death in a few years, who knows.