The Bootstrap CSS is not needed in order for our Kendo Bootstrap theme to work properly. That being said, it is not needed to have the bootstrap_min.css file in the angular.json file.
However, if the application uses the original Bootstrap classes, then the bootstrap_min.css file needs to be added in the angular.json file.
Let us know in case additional information is needed.
Regards,
Ivo
Progress Telerik
Virtual Classroom, the free self-paced technical training that gets you up to speed with Telerik and Kendo UI products quickly just got a fresh new look + new and improved content including a brand new Blazor course! Check it out at https://learn.telerik.com/.