@rich-vine1252 there is a toggle in the "f.lux > Color Effects" menu that makes f.lux do this switch automatically. It should be off by default, but it sounds like you want to make sure it is off on your Mac also.
Probably this is legitimate - we have shipped a "root-only" version in the past that doesn't ask for permissions, but root is a different level of privilege.
@DCRnash We did this on old dual-GPU macs from the 2012-2015 era. We found they would switch from discrete to integrated GPU and load the system colors, but not the f.lux ones.
On newer Apple Silicon macs, there is no switch (since there is just one GPU) and so we don't have to build a profile to keep things working. It's better in most cases for f.lux to be a "temporary" effect. But in case you somehow wanted the old behavior, it might still work with a pref - check out: https://justgetflux.com/news/2014/10/28/profile.html
@ahartline808 yes it will prompt until you give it a location, but if you use the "working late" preset it will not pay attention to solar time. It's probably easier to give it the location and then use a preset that ignores it.
@cxuj6464 It really depends on what the GPU manufacturer is doing (sometimes things break in driver updates since Win7 was EOL in 2020) - I would try a few different drivers (maybe older ones) to see if Win 7 support still works using those.