"There are no items yet." for most content types.

Is this a known bug? I'd love to provide more information, if needed!

I have tested on my D10 instance and seems fine.

Goto /admin/structure/node-weight to enable content types. In my case, I have two "Article" & "Basic Page". I have enabled both.

I see articles and can order here: /admin/structure/types/manage/article/order
I see pages and can order here: /admin/structure/types/manage/page/order

Not sure what your issue is, but I can't seem to reproduce the issues your having.

Thanks for the reply!

In the current installation with the problematic behaviour I have 14 content types.
I activated all those content types and only some showing items under /admin/structure/types/manage/***

I have compared the individual content types several times and there are no anomalies between the working and non-functioning content types.

Is there any way i can provide more information to identify the problem? It seems like some strange edgecase.

Possibly access/permission issues on those specific content types?

Did you clear cache/etc and see if they show up?