Bitwig Studio would auto-save the active project at regular times. Ideally, the interval could be specified by the user. As a result, there would be always a back-up of any work done.
Currently Bitwig stores a number of backups, but only when the user manually saves the project. In case of a crash or something unexpected in the system, Bitwig has a recovery function, but it is not reliable and it doesn’t save all the project information.
The fact is that sometimes users lose work, and this could be prevented with an auto-save function that is pretty frequent in software applications for creative work.
This is functionality that is common to many types of software, not just DAWs.
Manual saving and auto-back-ups.
Pro Tools allows you to specify the interval and the number of saves to keep. Despite Avid referring to the function as Auto Backup, it is more of an auto-save.
Auto Backup" feature in Pro Tools
FL Studio has this feature too.