What most people don't know about the ouroboros is that every time the creature eats itself it becomes a little bit closer to being a turd (a consequence of its peculiar metabolism) so even though from an inside perspective the system appears to be in a complex mysterious cyclic kind of stasis, from the outside it is just more and more obviously a turd in the shape of a donut.
I am not sure I remember anymore, I have eaten my tail one too many times.
I don't think this is a direct meaning of the metaphor, though any metaphor of endlessly repeating cycles can be placed in a rhetorical framework where it represents enshittification so I am sure I am not the first person to add or tweak the metaphor with that context.
By "coexist" we mean being installed side by side with barely distinguishable icons, and when you try to log into the wrong one with the wrong type of Microsoft account (where the login mask looks exactly the same), it throws a helpful error message saying "this account does not exist".
Next iteration will be "Copilot for Teams".
Whenever you get a message, Copilot will auto-send an answer unless you click "no" in a popup without window decorations, showing a timer.
On Windows Pro, you can disable this with a registry key, but that resets with feature updates.