when I installed debian 12.7 I created a separated /var directory, along other 2 separated directories (names forgotten).
I also use flatpak and this program is installed in this directory. Executing ‘flatpack update’ I discovered this directory is 95% full, meaning I cannot update anything, because /var is 95% full (only 400 MiB free)
Ideas to solve this?
Sounds like you created a seperate partition for /var. Only way to change that is to redo your partitions or bind mount an external disk as /var.