In my opinion about Drupal 10 Back-End Development course, is a very good course, in summary of everything seen in the course helped me to understand more about object-oriented programming, I understood some functions or code that I did not understand before and it was a little difficult for me as well as I learned new functions or things that I had not had to learn, as for Drupal 10 I also learned to do many things I did not know and some that I already knew how to do I could see that they can also be done differently and sometimes faster and improving the code.
After several years working with Drupal 6 and 7 I needed a guided course to make the leap to Drupal 10. It has cost me a bit since I go directly from version 7 to 10 but it was worth it. The backend programming of the old versions with respect to this new one changes a lot. With the Forcontu courses I have found a guide that goes through almost all the topics and at the same time proposes exercises related to the topic. Excellent environment to carry out the activities and proactivity of the tutors.