like many things, spaces is an option and you decide between using spaces, the dock
or window switching (alt tab) each have pros and cons
you can open applications, files, folders or drives in different spaces at the same time and
then switch between them using the commands:
control 2 for space 2
control 8 for space 8
You can have up to four rows and four columns
more info here: spaces
Thanks for the candid answer. At this stage of my life, I am not typically working on multiple projects at one time. My sense, since reading the other post plus some on line info, is that you can just "sweep" everything related to one topic (work project etc) into one Space and it doesn't get co-mingled with other projects.
I am following the directions and I don't see the links they mention. can't even find how to set it up. Enough said, I know what it is and don't need to dig deeper. On to the next stumbling block I am sure.