Windows is designed to work on a very wide range of specs, so older devices as well as low-end newer devices should be able to run it.
That’s even more true about Linux. Many popular distros can be run on a raspberry pi, a 20 year old MacBook, or a state-of-the-art gaming desktop.
It’s less true about macOS because Apple has more control over the hardware so they can be pickier. Mobile developers also have more control over the hardware and can be pickier, although that’s less true about Android than iPhone.
Hydrophobic coating loosely means a thin water proof coating on a material that otherwise isn’t waterproof.
Example: the previously mentioned popcorn bags are paper based but with a thin plastic based coating. (Historically we used to use wax for this kind of thing but in the modern day it’s almost always plastic)
Not that containers made of glass, ceramic, or metals that don’t corrode don’t need and typically don’t have hydrophobic coatings.