Quick Resume will NEVER work after powering on (Series X + Energy Saving mode)

Are you in quick on mode or energy save mode? If you are using quick on you really havnt shut down the console at all. Change settings to energy saving, then power down completely and unplug to be sure. Wait the 5 mins or so and restart the console. I've
gotten hung up on things as well and the standard shut down never worked for me, so I always do this type of restart if I need to fully reset my console for anything. Good luck

You haven't misunderstood it. Quick Resume is currently not working properly, and some games do not support it yet either. For now, it's best to save your game, and then quit out when you want to finish.

xbox one is constantly updating your friends and feeds and so on , but it should not be doing it in energy-saving mode , it should be ALL the way off , that's why it takes so long to boot up in that mode...maybe yours isn't in that mode or it isn't working
properly...

Energy-saving power mode

In energy-saving power mode, your console is shut down to save energy. In this mode:

•Updates are not downloaded and installed until your console is turned on.

•Your console takes 45 seconds to start up.

•You must press the Xbox button to start the console.

Notes

•In energy-saving mode, the PSU is in off/standby mode and the solid orange LED on the PSU is bright.

•The console uses 0.5 watts of power when in energy-saving mode.

so if the psu is off , I don't see how it could use the internet...

It doesn't work. It takes the same amount of power as the energy saving mode.

Even after performing the suggested steps, coming home from work this evening and attempting to power on the console with the controller and nothing happens.

Powered on with the power button and it again boots from cold/energy saving mode.