If this works for you, please also give Lunar[1] a try! It's free, and has a handy mode where it can sync your already adaptive built-in brightness to the exter

If this works for you, please also give Lunar[1] a try! It's free, and has a handy mode where it can sync your already adaptive built-in brightness to the external monitors. I'm the developer of Lunar so feel free to ask any questions about it. [1] https://lunar.fyi https://lunar.fyi