“Old Widget” widget not accessible

Good morning,

Some sidebar widgets that can be configured in “Old widgets” are no longer accessible, for example “Latest articles”.
This has more options than the recent Widget, such as being able to take the first image found if there is no featured image on the page.
I checked in the disabled widgets and there is no longer the example of the Ashe theme with the 3 thumbnails and recent articles.

I don’t know how to reinject “Old widgets/Latest articles” or the others if any are missing.

Could someone enlighten me?

Thanks in advance.