Built-in support for PlantUML (https://plantuml.com/) in Knowledge Articles and RichText fields for diagramming, as opposed to using an embedded chart from somewhere like LucidCharts. I had success supporting this manually via an Asset Layout with an embed field, but it's just not convenient. I'm listing references that may aid in implementation if decided to do so.
References:
https://github.com/WillBooster/plantuml-visualizer (Chrome Extension)
https://github.com/plantuml/plantuml-core (WASM Implementation)
https://plantuml.com/download (JAR and source)