Notes in Notion are not encrypted.

This is from their website:

'Notion's Privacy Policy outlines that your content is protected with security measures. It can be shared with government entities if legally required. Third parties may access your information for service provision under confidentiality agreements. Notion employees have limited access to your content, restricted to job necessity, ensuring privacy and security. For detailed specifics, please refer to the full policy at Notion's Privacy Policy.'

Better pick is https://standardnotes.com/

Yes and there is WAY too much whitespace

I use Obsidian

fortelabs.com/blog/category/topics/building-a-second-brain

he runs thru some apps

ultimately you need to experiment and decide what works for you 🙌