Can't find world and player folders in terraria folder
Solution 1:
It should be in .local/share/Terraria if you are not using a cloudsave
If you are it will be in
.local/share/Steam/userdata/<steamID>/105600/remote/
If it is not there run find $HOME -iname '*Terraria*' and it will show you all the locations that are named or contain Terraria