I have this weird issue with f.lux and just one app (my IDE).
I recorded it in youtube video https://www.youtube.com/watch?v=l6HZXV3whCY
f.lux 42.1
IntelliJ IDEA 2022.2.3 (Ultimate Edition)
Build #IU-222.4345.14, built on October 5, 2022
Runtime version: 17.0.4.1+7-b469.62 x86_64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
macOS 12.6
GC: G1 Young Generation, G1 Old Generation
Memory: 2048M
Cores: 12
Metal Rendering is ON
Non-Bundled Plugins:
com.wakatime.intellij.plugin (14.1.1)
com.jetbrains.darkPurpleTheme (1.3)
com.intellij.plugins.netbeanskeymap (222.4345.15)
com.dmarcotte.handlebars (222.4345.14)
com.jetbrains.plugins.meteor (222.4345.14)
cn.yiiguxing.plugin.translate (3.3.5)