Many people install Spotify on SSD, because Spotify can not change the installation directory. Spotify writes a lot of cache on disk drive. The bigger cache writes are not desirable for SSD disk. SSD has a limited resource (TBW). Spotify just kills the SSD while listening online every day.
This can be avoided if you enter the option to change the location of cached files. (For example on HDD with bigger size)
Thanks for reaching out about this here in the Community.
As you seem to have a specific suggestion in mind regarding the option to change the location of cached files and the Idea you mentioned is pretty old (meaning that the related Spotify feature might have changed over time), it'd be great if you'd create a new Idea solely based on your suggestion. This will also help all the other users who have felt like you since it will give them a place to express their opinion in the present.