Ec_sys module write support

I am having trouble loading the ec_sys module and enabling write support. The final goal is to provide fan support for a MSI GL65 9SE laptop via McontrolCenter and msi_ec.`

I have tried rpm-ostree kargs --append-if-missing="ec_sys.write_support=1"
and followed examples from these docs. Both the initramfs and dracut. No luck so far when I check modules via lsmod | grep ec_sys

Just an update the bazzite: testing can be rebased for ec_sys module. Please give it a try!