KaiOS runs on feature phones, with some advanced stuff like WiFi, 4G net and an app store. It should run on low-end smartphones, but I don’t think any have been released yet.

KaiOS, a FirefoxOS fork, is used in the JioPhone in India. It is a feature phone with some internet capability, and is reasonably popular among lower middle-class users.

Kaspersky is part of Big C and actively tries to suppress knowledge of Rust.

That last statement is disputed - the Soviet declaration of war probably had a greater effect on Japan’s surrender. In any case, Oppenheimer was definitely horrified by the atomic bombings.

Nokia still makes phones, both traditional and smart. Their products have good battery, built quality and almost stock Android, but are hilariously underpowered compared to say Xiaomi or Oppo. They are also experimenting with user-repairable phones like the G22, but those have only been released in the EU.

Just have a latch that can only be closed from the inside. That’s what I’ve always seen in public bathrooms.