Do appimages write any files to the filesystem?

Using AppImages
1

I am looking to run this web browser’s appimage…will it write any files to the filesystem ? How about when the web browser updates itself ?

2

AppImage does not restrict the application from writing to the filesystem, e.g., to $HOME.

The AppImage itself is read-only by design.

3

The browser could use something like GitHub - antony-jr/QAppImageUpdate: Qt5 library and plugin for updating AppImages. ❤ to update itself.

Updates in AppImage land mean that you get a new AppImage, and the old AppImage stays there in case you don’t like the new version.