Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 1060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 419.17
Broken: version: 2.80 (sub 64), branch: master (modified), commit date: 2019-05-13 22:40, hash: rBf070bdd7c9c4
"Revert Factory Preferences" sounds like you're going to change the Factory Preferences in some way. Also, the word "factory" really is a little obscure and I wonder if we could just use something more standard like "default". So:
"Revert Factory Preferences" -> "Load Default Preferences"
And then at some point consider File/"Load factory settings" -> Load default settings" (or even "Load default layout" or something else since "settings" implies preferences too). There's also --factory-startup which could get an alias like --default-settings maybe.
And I'd also like to say that I like seeing the "Save on Exit" option where it is now rather than potentially squirreled away under Save & Load, since it's really not exactly a preference but is really more of a meta-preference that affects the whole preference system and I think it's good to have it right there in your face any time you open the Preferences. That way if you want to play with weird preference settings but not have them saved, it's easy to see and uncheck this option before starting without remembering to make a special trip into Save & Load.