where are the Deutsch progress tests? are they gone, and if so, are they coming back? many thanks!
The website was rewritten a while ago, and this is one of the features that the old site had that they haven't added to the new one.
It's possible that it may be added to the new one as well but it seems unlikely.
https://support.duolingo.com/hc/en-us/articles/115002969903-Duolingo-s-New-Website lists the "progress quiz" feature in the "under consideration" section but notes that "we would rather focus efforts on creating other, more popular shop items".