Here you go @dalto (thanks)
[manjaro@manjaro ~]$ mount
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sys on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
dev on /dev type devtmpfs (rw,nosuid,relatime,size=1958340k,nr_inodes=489585,mode=755)
run on /run type tmpfs (rw,nosuid,nodev,relatime,mode=755)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
/dev/sdb1 on /run/miso/bootmnt type iso9660 (ro,relatime,nojoliet,check=s,map=n,blocksize=2048)
cowspace on /run/miso/cowspace type tmpfs (rw,relatime,size=262144k,mode=755)
overlay_root on /run/miso/overlay_root type tmpfs (rw,relatime,size=2967584k,mode=755)
/dev/loop0 on /run/miso/sfs/livefs type squashfs (ro,relatime)
/dev/loop1 on /run/miso/sfs/mhwdfs type squashfs (ro,relatime)
/dev/loop2 on /run/miso/sfs/desktopfs type squashfs (ro,relatime)
/dev/loop3 on /run/miso/sfs/rootfs type squashfs (ro,relatime)
overlay on / type overlay (rw,relatime,lowerdir=/run/miso/sfs/livefs:/run/miso/sfs/mhwdfs:/run/miso/sfs/desktopfs:/run/miso/sfs/rootfs,upperdir=/run/miso/overlay_root/upper,workdir=/run/miso/overlay_root/work,index=off)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
bpf on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=44,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=10487)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev)
configfs on /sys/kernel/config type configfs (rw,relatime)
tmpfs on /etc/pacman.d/gnupg type tmpfs (rw,relatime,mode=755)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=395676k,mode=700,uid=1000,gid=1000)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
[manjaro@manjaro ~]$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 62.4M 1 loop /run/miso/sfs/livefs
loop1 7:1 0 281.8M 1 loop /run/miso/sfs/mhwdfs
loop2 7:2 0 954.6M 1 loop /run/miso/sfs/desktopfs
loop3 7:3 0 432.5M 1 loop /run/miso/sfs/rootfs
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 260M 0 part
├─sda2 8:2 0 16M 0 part
├─sda3 8:3 0 524.8G 0 part
├─sda4 8:4 0 980M 0 part
├─sda5 8:5 0 14.7G 0 part
└─sda6 8:6 0 390.7G 0 part
sdb 8:16 1 3.8G 0 disk
├─sdb1 8:17 1 1.8G 0 part /run/miso/bootmnt
└─sdb2 8:18 1 4M 0 part
(sda6 was created by GParted before it errored)