I recently launched a Blender course for complete beginners. It gives a complete overview of the basic functionality. It think it is exactly what you requested. It is available in German and English.
It is relatively short, around 1:50. If you already have CAD experience you may be able to work through it in even less time. You will gain a very good basic understanding of the Blender UI functionality and may branch in any direction you would like to.
Here is the introductory lesson on YT in English: https://www.youtube.com/watch?v=uubpbTLQQzk
...und hier in Deutsch: https://www.youtube.com/watch?v=qISnAxWaMQA&t=2s
If you'd like one free year of Skillshare premium, you might participate in my give away which runs until end of October, I also plan another one in November. Just create a project model and post a screenshot under the Skillshare course (will be explained there also), and you enter the give away. Honestly, you will have a real chance of winning, as the courses just launched recently and there aren't as many projects yet :)
Hope this helps!
Greetings and viele Grüße Gesa