Permission Assistance

Is there possibly an app or way to manage permission besides using terminal? Using Tuxedo OS and it's been a nightmare trying to get permission correct. Before people start saying user issue please be aware I've used Linux for years and noticed each OS is different when it comes to permissions nothing is ever simple with using just Chown or Chmod etc. If you know Linuz you'd understand what I mean. I'm trying to simply add user and group to folder. I use sudo Chown -R sonnar:media. When this is done it changes folder to correct user and group but I'm not able to view content. I verified media group has sonarr, radarr, myself. Still not able to see. If I change owner to myself I'm able to see now, yet sonarr is now unable to see. Ok let me use 775, same thing. Let me try Chmod with g+rwx hmm won't stick. Let me try the gui verified I'm owner and able to modify yet using gui unable to make permission stick.. Frustrating. Let me know how your folder structure is set or if theirs a third party tool to manage permissions.