I dont´t know if it helps anything at all. I´ll give you the contents of updatedb.conf
Code:
cat /etc/updatedb.conf
PRUNE_BIND_MOUNTS="yes"
# PRUNENAMES=".git .bzr .hg .svn"
PRUNEPATHS="/tmp /var/spool /media /var/lib/os-prober /var/lib/ceph /home/.ecryptfs
/var/lib/schroot"
PRUNEFS="NFS afs autofs binfmt_misc ceph cgroup cgroup2 cifs coda configfs curlftpfs
debugfs devfs devpts devtmpfs ecryptfs ftpfs fuse.ceph fuse.cryfs fuse.encfs
fuse.glusterfs fuse.gvfsd-fuse fuse.mfs fuse.rclone fuse.rozofs fuse.sshfs fusectl
fusesmb hugetlbfs iso9660 lustre lustre_lite mfs mqueue ncpfs nfs nfs4 ocfs ocfs2 proc
pstore rpc_pipefs securityfs shfs smbfs sysfs tmpfs tracefs udev udf usbfs"