Chrome desktop · Research guidance. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
A second window can belong to the same session
Google explains that opening another Incognito window continues the existing Incognito session. The session ends when all Incognito windows close. This matters when a person closes the window containing a player and assumes that every temporary site state from that session has already ended.
Check a concrete shared-screen situation
Imagine opening a help article in one Incognito window and an account page in another. Closing the account window alone leaves the help window open in the same session. Before handing over the computer, inspect the remaining Incognito windows deliberately rather than treating the disappearance of one visible page as a complete session boundary.
Saved items are a separate matter
Google also says downloaded files and saved bookmarks remain after exiting Incognito. If a support session involved saving anything, its continued presence is not evidence that the Incognito session failed to close. It is an expected distinction between temporary browser session information and items you explicitly chose to keep.
Use the mode for its stated purpose
Incognito limits what Chrome retains locally from the session; it does not make network activity invisible to websites, an employer or an internet provider. A clean local browser session also does not cancel a service account or change its rights. Keep the relevant browser, saved-file and service-account questions separate when describing what you checked.
Questions, answered
Does each new Incognito window start an isolated session?
No. Google describes additional windows as continuing the session.
Are downloaded files removed when the session ends?
No. They remain until handled separately.