Mostly for not loosing unsavable work across transit. Though, Windows has kinda blurred the line between shutdown and standby, so now you can do neither (I guess you can still shutdown properly holding down the shift key while pressing the button, but who thinks about that?).
But standby was indeed much more prevelant when booting your laptop took 2~5min.
Had quite some problems with programs not cleaning caches properly and drives having weird behavior when accessed in offline state when they first introduced it, though I imagine it surely must have become more robust by now.
I don't want to shut my PC down just to walk a few blocks down the road to get lunch.
S3 standby my machine takes 10 seconds to wake up, S0 standby my machine takes 5 seconds to wake up, but to fully boot up from off and reload everything to where I was will take minutes and destroy my poor battery. i9 and nvme ssds are not power friendly.
I use my computer as my main communication device. When I wake it up, I want all my apps refreshed and ready, texts and mail downloaded, and everything ready to go. Then again, that’s why I have a Mac 😂 works great
I do the same and I'm running Linux Mint. I tried to add old S3 sleep manually but it never quite worked right and at times the laptop actually froze instead of sleeping with the CPU on and the fans running.
I just go to shutdown instead. It's annoying as the idea of instant resume when opening the laptop would be great but I also don't wanted a cooked CPU with a dead battery.