When I delete my files, my chromebook's files take up no space, but my chromebook's system's storage gets higher

Like for example if I delete 1 GB of files, my chromebook’s system gets 1 GB of storage added. It got so bad I had to power wash my chromebook after my chromebook system took up 24 GB. Does anyone know a solution to this or why this is even happening in the first place?

This is not a ChromeOS Help Forum, this is for MODDING chromeos

To add to what ThisDude stated, if you wish to run anything other than ChromeOS on your system, feel free to visit the docs: