A firefox extension called Chameleon can spoof things like user agent, screen size and resolution, time zone, audio and media devices, and keyboard fingerprint, among others. It can also prevent etag tracking.

Sounds interesting, thank you!

Why did you stay with it over Joplin? As a Joplin user, I am curious.

I second Joplin. I use it on Android and sync it locally (and only locally) with my Mac. It uses Markdown.