If you run df -hT /snap/pycharm-professional/current you will probably find that this is a filesystem of type squashfs.

Squashfs filesystems are read only by design and do not have a built in method to modify any part of the filesystem.

It is unclear from your question why you would want to modify part of an application. There is probably an easier way to do what you are attempting, but you haven't given enough details to determine that.

If you run df -hT /snap/pycharm-professional/current you will probably find that this is a filesystem of type squashfs.

Squashfs filesystems are read only by design and do not have a built in method to modify any part of the filesystem.

This appears to be a snap installed application. It is unclear from your question why you would want to modify part of an application. There is probably an easier way to do what you are attempting, but you haven't given enough details to determine that.