I don't know much about drawing apps but I know about Krita, the drawing app made by made by the KDE Foundation. There's also Inkscape which I think might be more what you're looking for, my co-worker uses it to make SVGs all the time. Hope that helps
In the video, he talks about examples of European governments specifically switching to Linux, like a police station using an Ubuntu based distro, and foss software like LibreOffice. I don't think android, Mac or BSD are mentioned.
I don't know much about drawing apps but I know about Krita, the drawing app made by made by the KDE Foundation. There's also Inkscape which I think might be more what you're looking for, my co-worker uses it to make SVGs all the time. Hope that helps