Intuitive Boolean operations in filter for non tech users

Note, Don't suggest old post: There are number of questions I found which are the pretty decade old and the solution too. I have gone through all of them and never found any of the solutions that are actually intuitive. Hence unless you don't find the case, please don't mark it as duplicate.

Context Inside the filter, People have the options to filter (A OR B) AND C

A, B, C are filter sets for e.g A- Department, B- Merchant, and C- Category. In each of the filter sets, people can select a number of departments, merchants or categories as well.

I have come up with this solution.

Problems I faced here: 1. As we build, the interface is going to be complex. 2. People may not understand OR, AND 3. Or, may find it difficult to use things which are boolean in nature since the user base are non-technical. 4. How to better represent summery

In general, how can I simplify it? Here the combination is A and (B OR C)