Proper use of HTMX

The question requires a bit of reasoning.
How do I use templates in a standard request/response cycle?
I generally understood how it works, but I can't figure out how to structure it correctly.
I have reviewed the michalsn Demo HTMX example and forum-example. I don't like that classic CRUD pages are disappearing. In their place, only the HTMX fragment is returned.  Can you suggest different ways to fix the situation?
I understand that as a developer I have the right to apply any approach. I would like to know your opinion.
What should I do if the user needs direct links like /books/edit/33? Or clicking on a link from different places: sidebar, profile, mail?
Do I need to write alternative controllers like Controllers/Ajax/? How do I create templates for both classic and HTMX cases?