If you use your PC to only run a single application at any time then yes, 8GB might be usable. If you need to have an Electron app opened, a few browser tabs and XCode (let alone some less efficient IDE)? Your compute will grind to a halt...
Well yeah… like, that's why Electron apps are terrible, though, I bend over backward to avoid them.
It's nice to see more RAM and Apple was being very stingy about it, but the real-world is totally overblown.