I have never mounted a Samba share in the GUI like that so I’m not really sure. Here is how to do it manually: https://wiki.archlinux.org/title/Samba#Client. Even if you want to do it from the GUI, it may be useful to read through that anyway so you have a better understanding of how the ownership and groups are supposed to be set up.
For doing it in the GUI like that, the ArchWiki recommends installing a package called kdenetwork-filesharing. https://wiki.archlinux.org/title/Samba#KDE
DE applications (like Dolphin) has the ability to browse Samba shares built in. Use the path
smb://servername/shareto browse the files. If you want to access files from on non-KDE application, you can install kio-fuse.To use a GUI in the KDE System Settings, you will need to install the kdenetwork-filesharing package.
Once you have that installed, maybe something like this will work for you:
In your screenshot, the mount point is in /run/media/siegfried which is not a persistent mount point. The /run directory is a temporary filesystem mounted at boot time. Any files or directories created in /run will be lost after a reboot.
The /run/media/username directory is specifically used for mounting removable media; probably you clicked on a device in the GUI file manager and it automatically mounted it for you. If you want to have persistent mounts that survive reboots, you will need to set up a mountpoint for it somewhere besides /run instead. Probably adding it to /etc/fstab would also be helpful.
- https://wiki.archlinux.org/title/File_systems#Mount_a_file_system
- https://wiki.archlinux.org/title/Fstab
Edit to mention: if you add your /run/media/ mountpoint to /etc/fstab, systemd will create it on the fly during the boot routine. It will still disappear when you reboot, but since it will get automatically created again with the same mountpoint next time you boot up it will effectively act the same as a persistent mountpoint.
Note that using /run/media this way doesn’t really align with the intended use according to FHS (gnome - what is the distinction between /media, /mnt and /run/mount? - Unix & Linux Stack Exchange), but whether or not that is a relevant detail for you is certainly not for me to say. 