What does it mean by "terminal-centric" distro?

Thanks for the information. I also just finished reading Does EndeavourOS allow GUI package installers? thread and I think I understand it better now.

One more question: even though the Quickstart application offers a simple GUI installer alternative, it doesn’t provide with a lot of software options. So how can I search new software that is not listed in the Quickstart application? Is there something like a “apt search” command for EndeavourOS?