Image manipulation and arrangement

How are you image-heavy users employing obsidian?

I’m trying to take technical scientific notes/summaries in obsidian. If I need to add a simple diagram to a note, the Excalidraw plugin is great, but to annotate image data it feels clunky compared to powerpoint or onenote. There is the slight chance it’s just a practice thing, but Excalidraw and Obsidian feel like two separate programs, while powerpoint feels like one.

What do you do?