My rimworld works fine in my 10+ yrs old ddr3 desktop. Amd or Nvidia gpu are all fine. Spend more on ram for Linux built. The estimate lifespan of my new desktop is 10 yrs.
Linux gaming experience is okish. You really have to chk the compatibility because some games claim they support Linux, but not really.
In server and gpu world, true. Laptop, desktop world. Not really. Most ppl don’t need that much computational power anyway.
Also, ppl usually not include the shipping, collecting ewaste and recycling ewaste in the carbon footprint cost. Our ewaste recycling is extremely inefficient compared to our manufacturing side.
For power, solar becomes so cheap now.