I noticed that LibreELEC is missing some important EXT4 tools, for instance: e4defrag, e2freefrag or filefrag. Basically they all come from the e2fsprogs package (in the case of the Debian distro). The tools are really great ones when you deal with the EXT4 filesystem fragmentation.
Currently, I can send files from my laptop to LibreELEC via WiFi, but I have no control over the fragmentation process. From time to time I would like to set some online defragmentation (which is supported by the EXT4 filesystem), but I can't do it now with LibreELEC. I have to unplug the drive from RPI, and connect it to my laptop to initiate the defrag process, which makes my TV useless till the process is finished.