What's the purpose of collections when you have bookmarks?

ecto_ruseff 

Hi there,

Collections simplifies several common tasks, such as highlighting important sections of an article for later reference. You can add text to the collection by highlighting it on the page and then dragging it into the collections pane. The same procedure works for images.

Collections can be exported to Excel or Word. This allows you to use the feature to jumpstart work on a research document, without having to copy, paste and alt-tab between Word and the browser.

Soon more export formats and destinations will be added. 

Collections have lots of potentials, it's nowhere near finished, there are still so many features that need to be added to it, one of them is using collections offline, just like Reading List.

You can view more info here:

https://blogs.windows.com/msedgedev/2019/08/20/collections-now-available-microsoft-edge-preview/

Also please take a look at these posts:

https://techcommunity.microsoft.com/t5/Discussions/Collections-feature-request-Let-us-mark-a-collection-for-offline/m-p/911799

https://techcommunity.microsoft.com/t5/Discussions/Edge-Collections-Feature-request-and-bug-problem-report/m-p/818156