I agree with the levels and descriptions of each and believe they will all be effective for the audiences you have described. We have standardized on using C4 Models as it provided a comprehensive framework for modeling in general. It was very easy to choose several required models for each project and point to optional models when they make sense. I believe draw.io supports C4 however we have adopted PlantUML with a C4 extension.
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I agree with the levels and descriptions of each and believe they will all be effective for the audiences you have described. We have standardized on using C4 Models as it provided a comprehensive framework for modeling in general. It was very easy to choose several required models for each project and point to optional models when they make sense. I believe draw.io supports C4 however we have adopted PlantUML with a C4 extension.