It says environmental in the title?

Did you try su -l?

Ubuntu. Package organization is annoying, versions are out of date, managing multiple versions isn’t consistent, and distro upgrades always have unintended consequences. Often ones that aren’t easy to figure out. Their reputation for being beginner friendly should have died around a decade ago.

I will be super annoyed. But I also just won’t buy another Kindle if they don’t have buttons. I also have a kobo with buttons that I like, so I’d just get another kobo with buttons. Though e readers don’t seem to be affected by planned obsolescence like other electronics so I won’t be buying a new one for a long time anyway.

Wooo Amazon listen to my opinions even though I’m not going to buy your stuff!

Sigh, I miss phones with physical keyboards.

Second on kobo, sure the OS is proprietary, but it’s good enough that I forget. And as the previous comment said, you can install third party reader software. I like koreader, it pretty much replaces the entire UI of the device