My experience with Ubuntu was that it took me about as long to get it installed and set up the way I wanted as it would for a Windows installation. To get it up and running barebones is about the same as well, but Windows has so much bloatware and advertising that I refuse to allow on my computer. It also forcibly reinstalls software at every update that I removed previously because I just don't need/want it there.

I can respect the lack of motivation to commit to learning to use a new OS though. It does take some adjustment, and sometimes there's no alternative to specific software that you may need. For the most part though, it's a pretty seamless transition nowadays.