1) Coding apps
2) Dev browsers
3) Terminals
4) Sql /DB apps
5) FTP/File handling apps
6) Non work browsing / leisure
7) Specs and text
8) Graphics / Figma / Ps
9) Music / podcast player
Once this is setup with shortcuts it becomes super fast to switch to DB-stuff, or terminal windows etc.
There's significant overlap compared to yours but I don't quite all of the dedicated app types you do. One thing I will note is that I don't have a desktop for music - I use VLC and collapse it to the systray (I've tried other players, but kept finding audio files that would break them, and also it was often tricky to make global keyboard controls work).
Column 1:
I = internet, for general-purpose browsing that doesn't fit elsewhere.
A = application, for programs (including) that don't fit elsewhere
R = reading, for blogs and stories, assuming they don't fit better elsewhere
Column 2:
C = code, D = debug (or was it documentation? I admit I'm sloppy within a column), E = ... I don't remember, but basically I use it if I need a third virtual desktop for code-related stuff
Column 3:
G = games, H = help (usually a wiki or walkthrough), J = journal (a place for me to record my own notes, since most games don't provide a builtin way to do that, and even if they do their primitive text editor usually sucks)
Column 4:
X = extra, Y, Z - in case I need another set.