Changes

Possibly the biggest difference between Windows and Ubuntu (and perhaps, GNU/Linux in general) is the way that programs are handled. On Windows, getting software requires the developer to package an installer (or a portable build for flash drives and the like) that you have to get from their website. They may also have to bundle dependencies (like the Visual C++ Runtime) or link you to their location if a license prevents that. If your software is closer to open-source, this is very different; either they have a repository that holds their own packages, someone has set one up for them, or they integrate their packages in the defaults (although this is very rare).

Your Linux distribution comes with repositories already configured so you can get a lot of the main programs immediately, but there are risks with the emulators in particular; repositories aren't focused on having every emulator, and in many cases when they do, they don't have newer versions. This isn't necessarily their fault though; especially with bigger distributions, repositories can be stuffed with ''loads'' of software that gets constant updates, so to get them tested and updated takes quite a bit of time. Rather than using the defaults, we'll add more repositories made by users or developers themselves that contain the latest versions of these emulators. Once these repositories are added, you will be able to install the emulators like with any other program and update them with the rest of your machine.