Any real benefits of jailbreaking a Kindle? I mean I know the “You free yourself from amazon!” elevator pitch, but what exactly does that mean?

I can already upload pretty much anything I want to it with Calibre. Can I add support for other ebook formats? Cooler utilities on my Scribe? Alternative ebook stores (yes I know where I am)? A user interface that isn’t absolute garbage?

I just wish Wayland weren’t so weird about screensavers. It’s it so much to ask to be able to lock my account when I have a screensaver activated?*

*This is what I’m told is the issue when it’s brought up on KDE, i really don’t have the wherewithal to actually dig into it. Could be talking out of my ass on this. Hope I am at least.