Bazzite alongside other Linux distros

Hiya, been trying to install Bazzite to no avail alongside my installation of EndeavourOS, with rEFInd as the first thing booting to allow me to find EOS and other distros' GRUBs, so that each may remain untouched from other distros and isolated. Below is a picture of the error I get, any help is appreciated! Also, I know this isn't officially supported, but if I can just tell ostree to ignore other Linux partitions and act as if it was the only entity on the system, I think it might just work