You must know your stuff about hard drives. Are SSD hard drives less reliabe than spinning disk ones?
Someone here recommended avoiding SSDs for storing important stuff.
SSDs are great. But... I have had spinning disk hard-drives which I have been able to recover all important data from as they began to fail where SSDs I've had that have failed just suddenly stop working completely.
Though the truth is that you should have a backup strategy and use it (RAID is not a backup). Two is one and one is none. All storage equipment is ephemeral.
My configuration of choice for workstations is an SSD of low-to-intermediate size for the OS and games that like fast disks and large spinning storage for a secondary. Laptops get a larger SSD because they *really* benefit from it and usually have fewer options. If your needs are simple, backup directly to an external drive is fine. If more complex, get some network storage as it's easier to manage backups from a single point than multiple devices.