Currenty, when the Grid is in InCell edit mode, if a column binds to a boolean field, it is required a custom logic to display the field as a checkbox, which is always in edit mode and can be updated through a single click. Here is a REPL sample that shows the example:
https://netcorerepl.telerik.com/GJOhEIkj47P2xHf709
My opinion is that this functionality should work correctly out of the box without additional coding. If this is not available, then there should be an applicable sample code.
Is it possible to make an example where EF, Dirty works, no double click required and the checkbox always looks like a checkbox?