RE: Bios bug: Latitude 7440
My reference was to hardware support by OS cycle - not the OS itself. Good luck getting repair support from Apple once three years are up.
There's nothing wrong with Apple's systems - the hardware in most cases is so closely similar to what's inside a PC (the manufacturers are, after all, the same - Apple's systems are built by the same contractors that make systems for Dell, HP, Lenovo, etc) -- and if you're expecting perfection, just ask anyone who's seen a Mac destroyed by a swollen battery or had a video chip fail, etc. It does happen - and with about the same frequency as it does with Dell.
You DO get better support than with any PC vendor - yes. Better hardware though? Nope - it's the same, as is the frequency with which problems arise.