Usage for multi-browser CEF app

[t1teddypark]

I am quite new to CEF, and I have been seeing quite a bit of questions regarding using multiple browsers for a CEF app. But I am confused to what might the use case of such be? My understanding is that a CefBrowser is like a tab in a regular chrome browser, it display some webpage. In an app, don't you always only have one page that you are interacting with? Why are there so many people wanting to use multiple browsers?
Thanks!

[ndesktop]

Different use cases.
Even if there is one page, there may be additional windows (multiview, multi-SDI, modal dialogs, printing etc.) that might need to use another CefBrowser for consistency purposes.

[t1teddypark]

Thanks so much for your response! In the case of multi view, do you actually mean like actual different native OS windows? Or like different CefView fit within the same name native OS windows?
Could you explain further what you mean by consistency purposes?

[ndesktop]

For example, you have a HTML editor which uses browser to edit content. Then you can have a second window, also using browser, to actually display the content of the editor.
Or like some editors (notepad++ cross to my mind now) where you can open a file in a second view.

Also a comparator between items, left-right file managers a la Windows Commander or WinSCP etc.
There are quite a number of use cases.

Obviously one can use a single browser and split the browser into left/right with two DIVs with width 50%, but that will require nontrivial JS implementations, since now you don't have just "browser content with elements", but to distinguish between source and destination (D&D copy), inplace dual editors (for file comparisons).

Take TortoiseGit Diff feature, for example. You will probably want two separate browsers (three if you show also the merge) instead of a single one split in three.