I'm not always at the limit, but when I hit it, it really hurts. I try to prune down to 5-7 spaces at a time when I'm between sprints, because even with breadcrumbs there's only so much I can keep in my head and process in an ongoing manner. But to some degree, the spaces hanging out there, tagged, are my "these are what were important to you yesterday, what are you doing about that today?"
I try to have one per project, one for general chat, and ideally a little room for throwaway searches ... that might become new projects of their own....
macOS Spaces have no names. spacetags pins a colored label to each one — visible while you work, and big in Mission Control so you can see what every Space is for. Labels follow their Space across reboots and monitor changes. $4.99 once, 14-day trial.
I'd never considered packs until a friend complained about the "default" words they just weren't doing it for him. "Now, if you had a fantasy pack ". And thus fantasy, sci-fi, supers. I find the fantasy pack the most challenging, but on a good day that really works. :)
