The short version is that today's article is about installing Flatpak in Lubuntu. This will work for other distros, though Mint should support Flatpak natively - as will some other distros. I made this one specific to Lubuntu, but I include directions at the bottom for those using Ubuntu who also want to add Flatpaks to their Software Manager.
It's not that complicated and enables a whole new world of applications that are sandboxed and come shipped with everything they need.
linux-tips.us
So, there's an article...
It's not that complicated and enables a whole new world of applications that are sandboxed and come shipped with everything they need.
Install Flatpaks In Lubuntu • Linux Tips
This shouldn't be a very long article and will apply to other distros, but this is how you install Flatpaks in Lubuntu.

So, there's an article...