When creating new containers, the "Init Process" option must be manually checked each time. For users running GUI applications (examples: Trivalent, Google Chrome), the lack of an init process causes failures with D-Bus socket connections.
I would want to see a global toggle in the Preferences dialog that allows users to have the "Init Process" (--init) flag enabled by default for all new container creations. Perhaps the "Create" dialog could remember the last used state?
I use Distrobox for special use cases and GUI applications that rely on such processes, so possibly having something like a custom saved profile that you can use, in order to save time, would be a nice feature to add.