With all of the time I have, I am an insult to the dead.
In context, the person is saying they feel like they are wasting their life and that innumerable people in the past would’ve killed to have the kind of free time or life they have.
It reminds me to be grateful for both the time I have alive and the quality of that time.
I find it extremely motivating in pursuing my various personal pursuits. I should seem like a Renaissance master to the people of the past and anything less is insulting.
You should look into VFIO. I was in the same place where I wanted to have a Linux desktop but I don’t want to dual boot to play games because that shit is CRAZY annoying. However, there’s a way to virtualize Windows inside of you Linux desktop and get 99% of your GPU’s performance due to VFIO. I think if you use Kubuntu specifically there’s a really strong guide for setting it up, although admittedly it’s not trivial. Good luck!