Can Cowork really control your entire desktop?

Genuinely curious if anyone has gotten this working end-to-end and how good the desktop controller actually is.

For context I'm on Windows which doesn't have full desktop controller via Cowork yet. Been messing with the browser extension and it hits a wall the moment anything requires a native OS dialog - print settings being the obvious example. It can see the browser fine, but the second a system dialog opens it's blind.

The workflow I'm trying to automate: scheduled email check, download the attached PDF, adjust print properties (not just hit print - actually configure the settings), then fill out shipping info on Etsy.

Mouse + keyboard control is supposed to bridge that gap but it's not on Windows yet.

Questions for anyone who's actually used it:

\- Does the mouse/keyboard control actually handle native OS windows and dialogs? how well does it handle them?

\- Has anyone run a workflow like mine (email → PDF → print config → form fill) successfully?

\- how well does full desktop controller handle browser windows? currently, cowork will tap into my chrome extension and do an excellent job at navigating web pages but, again, gets stuck when native OS programs need to be involved. Can browser control and desktop control run in parallel? Browser handles the form fills, desktop kicks in for the print dialog, then hands back off?

ultimately I'm trying to figure out if a MacOS product with the cowork feature even solves this before I go down that road.