Having a second Internal SSD which is purely dedicated to games installations is a good idea, and because games mostly only ever read from the drive, an SSD that is not written to as much as the system drive, will last longer ( SSD lifespan degrades the more it is written to ).
If you have a machine with just one SSD then you obviously have to use that, and share read / write access to the same drive with whatever Windows is doing in the background while you play.
Just don't fill your C: Drive beyond circa 80% full (personally I like to keep it less than 60% full allowing for Windows sometimes using ridiculous amounts of space for updates). Unless your fastest internal Hard drive is an M2 NVME SSD used as the system drive, and you have plenty of space, then your C: drive would be best. Ideally installing games to a different Internal hard drive than the Hard Drive you have Windows installed on is better for performance loading the games resources. (I have since upgraded my laptop (see signature) but a lot of the tips to follow are still good)
