An SSD has no spinning platters and usually tolerates movement better than an HDD. That does not make it immune to failure, and gaming performance depends on more than the drive type.

HDDs contain moving parts that can be damaged by shock, especially while running. SSDs use flash storage, but their controller, firmware, or cells can also fail. An SSD generally improves loading and installation responsiveness; it does not guarantee higher frame rates when the CPU or GPU is the limiting factor.
For a game library, use the launcher's storage settings to create a library on the SSD and move supported installations. Verify one game launches from the new location before removing its old copy. If you are replacing the entire Windows disk, a disk clone may be more appropriate.
Monitor drive health, avoid sudden unplugging, keep firmware and Windows updated, and maintain a separate copy of saves. A brand-new SSD is still a single point of failure.
If the games and Windows share the HDD and you are replacing that whole disk, a disk clone can transfer the complete installation. For games only, prefer the launcher's move feature.
Step 1. Connect the destination drive. Open Tools and utilities in Qiling Disk Master and choose Disk/Partition clone. For a boot-drive replacement, choose the entire disk rather than only C:.

Step 2. Select the existing system disk as the source. Compare its model, capacity, and partition map; include the boot and recovery partitions. Click Next.

Step 3. Select the new drive as the destination by model and capacity, then click Next. Cloning overwrites this disk, so move its useful files elsewhere first.

Step 4. Inspect the source-to-destination layout. Ensure the required partitions fit; use Optimize for SSD when the destination is an SSD and that option is available. The screenshot illustrates the preview controls; verify your own whole-disk partition map.

Step 5. Click Proceed. Read any overwrite warning and confirm only after rechecking the target disk. Keep both drives connected until the progress screen reports completion; then boot-test the destination before reusing the source.

Will an SSD increase FPS? Usually the largest difference is load time; frame rates depend mainly on the rest of the PC.
Do SSDs need backups? Yes. Neither SSDs nor HDDs are failure-proof.
An SSD is usually a better gaming drive for loading and resistance to physical shock, but neither drive type eliminates the need to back up saves.
For the gaming impact of adding a 1TB SSD, read Will Adding a 1TB SSD Improve Laptop Gaming?
For a performance comparison rather than a durability comparison, see how HDD and SSD speeds differ in real workloads before deciding whether an upgrade will help.