With Flatpak most of the runtime stuff is packaged separately
They mentioned that not all flatpaks use the same separate runtime. Ideally they could just use the one my distro packages.
I don’t find Windows to be any more backwards compatible than Linux is. On Linux you get the advantage of having access to the source
You can run (a lot of) really old (late 90s) windows binaries with the modern libraries. You can also probably run really old linux binaries, but only if they use syscalls directly, not if they are (dynamically) linked against e.g. libc or x-stuff. Of course if the source is open, you can make it work.
They mentioned that not all flatpaks use the same separate runtime. Ideally they could just use the one my distro packages.
You can run (a lot of) really old (late 90s) windows binaries with the modern libraries. You can also probably run really old linux binaries, but only if they use syscalls directly, not if they are (dynamically) linked against e.g. libc or x-stuff. Of course if the source is open, you can make it work.