SystemRepair/Backup/Snapshots taking lots of space.

In Windows, [Program Data] - [Dell] - [SA Remediation] - [System Repair] - [Snapshots] is taking about 21GB which is a fair amount for my SSD. With barely anything downloaded, most of my storage is taken by the system functions and windows features.

I also know that you apparently can't delete it, but you can disable it entirely on the Dell Support Assist App. My question is, do I really need some enabled? I guess I can go down to 12GB which is the minimum recommended for the 'system restore.' But in simple terms, what exactly does it do and do I need it enabled at all?