flet packaging and distributing for linux : right way?

[magowiz]

Currently to create a package for linux: if I go to pack guide, I understand that uses pyinstaller and create a file with all needed to run the application (link: https://flet.dev/docs/cookbook/packaging-desktop-app), and this is clear and fine also because I already used pyinstaller alone and I know what to expect.

I got confused because in the same page I can read an alert named "A better way to package is here" that is pointing to use build, and to this page: https://flet.dev/docs/publish. if I do flet build linux at the end of the process I get pointed to a folder named build/linux which contains files, folders and not a bundle single executable file.
Probably I'm not understanding or I'm looking into wrong folders, by the way I also think that in publish guide you should specify better what to expect in terms of result (file format, destination).

For apk I saw it is perfect, you run flet build apk and you will end up with an apk you can install in your android smartphone.

Could you please tell me, regarding desktop applications, which should be the right procedure to obtain a distributable package? Do I need to rely on external tools for that?