a mobile OS that basically eschews backwards compatibility
I have an app built for Android 4 running on my Android 15 device. It looks ugly but it works. Of course other apps will not be so lucky, but some backwards compat is absolutely there.
a desktop OS that can still run 30 year old applications
Not really, Microsoft is steadily breaking old stuff. For example lot of 10-15 year old software that was doing something hardware-related would be broken now due to driver signing changes/restrictions (e.g. WinRing0 things).
“Is vacation 28 days” should not be a question, it should be the minimum mandated by law. “Will you work weekends” should rarely be a question, it should be heavily regulated and only allowed for positions where it’s truly required (and never to compensate for management fuckups).
Actually for both of them, the conclusion is correct. “The second they’ll get a better offer they’ll vanish” - no shit, this is how it works under capitalism. Want to keep them? Make a better offer. “The second they find someone to do the same for less pay, they’ll fire you” - no shit, this is how it works under capitalism. Want to make that harder to do? Join or organize a union, and otherwise fight for your labor rights.