That’s what a lot of us agreed it was for a long time ago, but most people use it as an “I don’t like this”, or “I disagree” button. Some people even use it as an “I don’t like you personally” button. There were a few times on Reddit when I got into an argument with someone and they went through my profile and downvoted everything they saw until they got bored.
Many DE have received substantial improvements over the last couple of years. It sounds like you’re really looking for something lightweight, more than you are something that is fully featured. I don’t have much experience with the lightweight Linux DE, because when I need performance I just use command line like you do. I’m sure if you did some searching, you could find a really snappy DE, but it doesn’t sound very important for your use case. Definitely do check out some of the full-featured desktops though if you ever decide to use Linux as a primary PC. Several of them are really slick now.
Steam works flawlessly with Linux now. If you have an Nvidia GFX card then you can even get a Pop!_OS install with the driver pre-configured. It’s pretty rad!
Say fucking what? When was the last time you tried KDE or Gnome? Gnome is a beautiful masterpiece that blows Windows and Mac OS desktops out of the water.
I can’t use Fusion 360 on Linux, so I dual boot windows. But that’s the only time I ever go back. I don’t even run a bootloader with options and you’d never know Windows is on my machine unless you interrupted the boot process and checked boot drives. Getting into Windows is a manual process on my system.