> On a modern system you buy in the next electronic store that is ready to use the mental load is the same as using any Sony OS.

It's really really not. Ever had the scenario where anticheat for a game has failed to install because of a pending windows update?

> I use a console 3 times a month when friends come around to play. I often have to wait for a fairly long update of OS and games.

Both xbox and playstation have supported background updates for the last couple of years, both for the OS and for games.