157 karma · joined May 3, 2023
I use windows as a temporary collection of related things. If I'm researching a purchasing decision, for instance, I'll have a tab with the Amazon listing and a bunch of tabs containing information/reviews about the item. But I only need that for a couple hours, then I want to easily dump everything by closing that window. And I want to be able to easily find just my research info by scanning my open windows. Spaces are too permanent for that use case.
Another way to say that is that Spaces need their own windows sometimes, too, and Arc deals with that scenario way worse than a traditional browser. They need some "in-between" solution if they don't want users needing multiple windows, or they need to handle multiple windows better.
It ends up being more hassle than it's worth. Most of us use multiple windows to divide up separate, short-term pieces of work that we don't really need to persist very long, and Arc just doesn't deal with this scenario well at all. I think the only solution would be to somehow sync the state of all tabs across all windows (so my half-written Reddit comment appears in the same Reddit tab in every window).