When comparing PowerToys vs F.lux, the Slant community recommends F.lux for most people. In the question“What are the best power user tools for Windows?” F.lux is ranked 5th while PowerToys is ranked 15th. The most important reason people chose F.lux is:
Helps provide better sleep for more energy during the day.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Create your own "Fancy Zones"
Fancy Zones are the places that application windows snap to into. You may choose a pre configured set of zones or create your own ones. You also have to use a shortcut instead of mouse to snap windows into the grid.
Pro Native and supported by Microsoft
No need to install third-party tools, and is efficiently integrated with Windows 10.
Pro Free
Pro Includes various helpful features and tools
Not just a tiling window manager, includes search box, keyboard command remapper, and more
Pro Includes Keyboard remapper
Remap your keyboard or well known shortcuts to work with other combinations. Are you used to copy paste on a Mac? Add Alt+C / Alt+V for copy and paste!
Pro Get an OS level color picker
Turn it on or off, it's your choice.
Pro Every Feature can be enabled or disabled to your liking
Pro Windows button shortcut cheat sheet
Press Windows+G to see all shortcuts that can be used with the Windows button.
Pro Easily customizable
Menu to add/edit zones is very intuitive.
Pro 'Wox' launcher is bundled
The popular open source launcher Wox is included in PowerToys and can be toggled on or off. It takes less resources or time at launch than the stand alone version of Wox.
Pro Global Push to talk
Currently experimental.
Pro Can help sleep better
Helps provide better sleep for more energy during the day.
Pro Eases eye strain
Decreases color temperature at night, changing the normally fluorescent blue of an LCD monitor to a soft orange. Much easier on the eyes, especially in a low-light environment.
Pro Subtle transition
The transition from daytime to nighttime color modes takes an hour by default and will detect your current timezone, meaning that it will happen in the background at sunset, often without you noticing.
Cons
Con Doesn't remember window locations after monitors turn off
If monitors get turned off or are disabled, windows tend to get cluttered when they adjust to the changes, which does make sense, but window locations aren't remembered if the configuration changes back to how it was.
Con Lack of tabbing windows in the same FancyZone
Con Takes a while to get used to
After installing F.lux, the screen will look a lot more yellow. This takes about a week to fully get used to. You can ease into it by setting the color temps higher than the recommended defaults.