[Feature Request] Workspaces (like Floorp browser)

Hello friends,

Floorp's "workspaces" feature doesn't appear to be an extension (at least not publicly) and that is honestly the only good thing about the browser, and the only reason for why it is my main browser. It is so intuitive and blissful to use tree-style tab and the workspaces feature in Floorp.

I think it is not only a great idea to add a similar feature - but IMO it is the only unique and defining feature of Floorp browser. If you added this feature to CachyOS, then I'm sure there are quite a few users who would switch from Floorp to Cachy Browser, not just myself.

The issue names no files, tests, or entry points. Start by examining the browser's existing tab interface and comparing the requested behavior with Floorp's workspaces feature. Done means a defined, working workspace feature that matches the intended tab organization and switching experience.

Written by the indexing model from the issue text.