To avoid bloating, clear the cache files and then set a configuration setting in the Spotify setup files to cap the cache size
"MacOS If Spotify is still open, close it. Launch Finder.Select Go To Folder from the Go menu option. (Shift–Command-G)Type /Library/Caches/com.spotify.client/ Check the post to learn more.
Windows It’s important to note that your username> is your Windows login. Go to the C:Usersyourusername>AppDataLocalSpotify folder