My hostname keeps changing on reboot

This isn’t really a problem or an issue but I’m kinda curious about it.

I thought openSUSE generate a hostname like “linux-xxxx” when you install it and that was it. But for me it generates a new host name every time I turn on my computer.

For example, right now it’s “oseiler-linux” yesterday it was “mac-sophia”. I’m wondering how it generates these kinds of hostnames…

In Network settings

Be certain that the “Change Hostname via DHCP” is unchecked