And besides the GUI, all unixes were way more cutting edge than anything windows except NT. Only when that went mainstream with XP it became serious.
I know your 20 year timeframe is after XP's release, but I just wanted to point out there was a time when the unixes were way ahead. You could even get common software like WP, Lotus 123 and even internet explorer and the consumer outlook (i forget the name) for them in the late 90s.
Could you please elaborate?
"Task Explorer is built using the Qt Framework, ensuring a cross-platform user interface with plans to eventually port the tool to Linux, which could make it one of the first advanced, GUI-based task managers for the platform."
And I don't have to play the 'which service has this?' game.