@pantulis, I wonder if you were thinking that NotePlan supports as wide an array of file types as @MitchWagner claims for Obsidian:
Obsidian natively supports Markdown, plain text, audio, video, and PDFs. But it can contain any document type. I use Obsidian as a container for managing Office documents. I feel like this is a powerful benefit to Obsidian that is not discussed a lot.