I do my research and can't find anything useful, maybe I'm using the wrong keywords, nvm.

if I try to run spotify for example I got "Unable to initialize the storage of temporary files" error, but if I go sudo spotify it works like a charm.

Same thing on clementine got "librarybackend attempt to write a readonly database unable to fetch row" but if I run sudo clementine works great.

Now I know the power of sudo so, how can make this work without typing sudo everytime?

I was thinking adding to group users, but dunno how to do it or if it safe to do this, on the spotify folder y even chmod 777 the file but still doesn't work.