Not OP, but the way I use macOS Spaces is to differentiate between work and private. I use Chrome for both, so I have some Chrome windows in my work space, and some in my private space. I do similar things for other apps like iTerm. It's an important feature. I once tried having two different browsers for work/private, but it was a chore to manage which browser I opened links in, so I gave up.
My biggest problem with Spaces is that it never remembers which space anything is in. When I reboot, everything is in the wrong space and has to be moved around.
My biggest problem with Spaces is that it never remembers which space anything is in. When I reboot, everything is in the wrong space and has to be moved around.