He’s just asking as in, maybe someone can share their perspective on why there may be an advantage to tab groups over windows. And to that end… isn’t there a certain amount of system resources that are increased more with a whole new window as opposed to just more tabs in groups? I would think it would consume more resources, albeit perhaps not to any severe degree. —?

And to the actual question I think visually tab groups are easier to navigate than swapping back through windows. Task managers don’t really tend to present windows in a fashion where you could refer to them in context of one-another. Maybe some custom views that you can install in Linux but even then, ones I’ve tried still don’t quite give you a quick easy overview that shows enough detail. You pretty much see what program you’re swapping to, but not laid out in ways you can compare and choose on the fly the way you want when it’s the same application but different content. That’s my experience, anyhow.