Pretty simple usage for me. I have dual monitors and have the space below my main desktop set up to be where my Parallels Windows XP VM lives. (You can assign applications to any space [default] or one particular Space.) I have my Stickies set up to show in all Spaces, so that my desktop looks the same in both.
I may run apps in either space... but of course, ArchiCAD doesn't work with Spaces (see other threads), so I have to be careful about switching spaces if AC is running, depending on what it is doing. I would probably use spaces more if AC behaved properly. (There are some reports that some erratic spaces behavior are issues on Apple's side, in GS's defense.)
One of the forum moderators AC 26 USA and earlier • macOS Ventura 13.6, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB
Spaces: Not at all. They seem closed off from one another.
I have so much going on right now with an Archicad project, a public art pitch [Word], the Artlantis book with writing [Word], illustrating [Artlantis and Photoshop and Bridge] and laying out each book article [InDesign]. Then there's research and communication where I'm extracting things from Safari and Mail. It is a big mess on the desktop - the one space I'm using has around fifty windows open.
I manage all this mess with Command-Tab. This function spreads open application icons in a band across mid-screen - twenty-two open right now. It makes it easy to toggle between the last used application that is a frequent demand of mine. It USED to be that when an application came forward ALL of its windows did, but now individual windows interleave beautifully.