Can't update because of "missing space"

/!\This is my very first non-windows OS, I don't know a lot about linux. Someone installed it for me, but they're moving to a new house and I don't want to disturb them right now. When trying to update bazzite, I get this error "Importing: Unencapsulating base: Layer sha256:71a5e726c0ce85b6d8e5f8ee4049ed54cb82c3d1405093cceec723e63529fba8: Importing objects: Importing object c5/69b825a0afe5f86ea0d5208d7e98542e18ce59f9a1d0dfae0c95f3f1d35d18.file: Processing content object c569b825a0afe5f86ea0d5208d7e98542e18ce59f9a1d0dfae0c95f3f1d35d18: Importing regfile: min-free-space-percent '3%' would be exceeded, at least 156,3 Mo requested" This would suggest a lack of space, though I don't know/understand where it tries to download the update. Also: 1) I have three separate instances of bazzite-related peripherals: - One is just named "/". Dolphin tells me it has 0 octet free out of 42.2Mio and contains folders such as "bin", "boot", "dev", "etc", "run"..., and its path is "/"
- One is named "Linux_Home", has 230 Gio free out of 310 and its path is "/run/media/system/Linux_Home/" - And the last one is named "bazzite_bunch_of_random_numbers" (probably hexadecimal code?), supposedly has 8 Gio free out of 464 (even though filelight tells me it only contains 30 Mio worth of stuff in it); its path is "/etc/" 2) Using the Disk partition tool, I can see that -I have an SSD with a 498 Go partition encrypted with LUKS, named "bazzite_bunch_of_random_numbers" -I have a HDD with a 300Go partition named Linux-Home I don't know if any of that can help troubleshoot my problem