Used Yast2 Partitioner GUI to create and mount a partition, but user has no write permissions. What next?

English Install/Boot/Login
5

thank you, hui/knurpht.

DESKTOP-UALHCJF:/home/me # cat /etc/fstab
UUID=d92662f8-10d7-4253-89e1-52014d81e878  /                   btrfs  defaults              0  0
UUID=d92662f8-10d7-4253-89e1-52014d81e878  /var                btrfs  subvol=/@/var         0  0
UUID=d92662f8-10d7-4253-89e1-52014d81e878  /usr/local          btrfs  subvol=/@/usr/local   0  0
UUID=d92662f8-10d7-4253-89e1-52014d81e878  /srv                btrfs  subvol=/@/srv         0  0
UUID=d92662f8-10d7-4253-89e1-52014d81e878  /root               btrfs  subvol=/@/root        0  0
UUID=d92662f8-10d7-4253-89e1-52014d81e878  /opt                btrfs  subvol=/@/opt         0  0
UUID=BF6D-33F0                             /boot/efi           vfat   utf8,dmask=0077       0  2
UUID=e5e727f8-62d9-425f-b242-cbb6fa226ec8  swap                swap   defaults              0  0
UUID=d92662f8-10d7-4253-89e1-52014d81e878  /.snapshots         btrfs  subvol=/@/.snapshots  0  0
UUID=9754cca7-310a-4f0d-9022-c2cdf60064e7  /home/Storage1-Med  ext4   data=ordered          0  2

that last one being my shiny new EXT4 partition.