As stated in the title of this ticket, if a user is a participant of a course with a very long name and / or this course is placed within a category with a long name, then in the Card view of the Course overview block on the "My courses" pages those names are truncated without any tool-tip hints:

By contrast, the List and Summary views reproduce the course and category names in full.

Ergo the user is forced to switch the view to List or Summary to have easy no-click access to these long course / category names.