Hi Viliam Zaborsky,
Thank you for reaching out on the Microsoft Q&A Forum. we are sorry to hear about the trouble you're having with Missing a service in service list.
It sounds disappointing that you've gone through all the modules, but they are not providing sufficient information and are missing some information.
Here, we are linking the link where you can explore about the Azure container apps as compute service:
https://learn.microsoft.com/en-us/azure/architecture/guide/technology-choices/compute-decision-tree
If you have found the answer provided to be helpful, please click on the "Accept Answer and Upvote" button so that it is useful for other members in the Microsoft Q&A community.