Question - Anonymous Samba Share Permissons

Hello - i’ve got an anonymous Samba share setup on an Ubuntu 20.04 installation as follows:

<span style="color:#323232;">[global]
</span><span style="color:#323232;">    map to guest = Bad User
</span><span style="color:#323232;">    log file = /var/log/samba/%m
</span><span style="color:#323232;">    log level = 1
</span><span style="color:#323232;">    server role = standalone server
</span><span style="color:#323232;">
</span><span style="color:#323232;">[ubuntu-media-share]
</span><span style="color:#323232;">    path = /srv/samba/ubuntu-media-share
</span><span style="color:#323232;">    read only = no
</span><span style="color:#323232;">    guest ok = yes
</span><span style="color:#323232;">    guest only = yes
</span>

On a remote Debian 12 server, I have the share mounted in /etc/fstab as follows:

<span style="color:#323232;">//10.0.0.5/ubuntu-media-share   /media/ums      cifs    guest   0       0
</span>

However, I can only access this file share on the remote server as root. What am I missing to make this server accessible as any other user? In particular, I have users in the media group that need to read/write that directory.

Any help is greatly appreciated. Thank you!

Edit: codeblock formatting