Imagine this situation. You have attached an external USB or SSD to your system and using it as an additional storage media. This is a common use case specially if you have set up a media server on Raspberry Pi or any Linux system.

On Linux, you normally have to click on the mount option in the file explorer or use the mount command to start using the external drive.

This is an inconvenience and it could also be problematic in situations where you require the disk to be mounted like internal disks when the system starts. Imagine the media server not showing any media because the media was stored on an external disk and it was not mounted.