>Yeah, and they are the primary way to install software for nearly every distro that has them.

>And even when people install software on their user's home only, we don't call it anything different.

But even on Android the word used is "install". When you try to install an apk, the button says "install", not "sideload". "Sideload" is only used in the context of google's blog post, where it's there to differentiate between installs from first party sources vs others. This is an important distinction to capture, because their new restrictions only apply to the latter, so something like "installing isn't going way" wouldn't make sense. "sideload" captures this distinction, and is far more concise than something "installing from third party sources". Moreover this sort of word policing reeks of ingroup purity tests from the culture wars, eg. "autistic vs person with autism" or whatever.