Why does my Ubuntu look like a terminal and not like the nice-looking UI that I am expecting? [duplicate]

Trending 5 months ago

I precocious installed Ubuntu connected my aged MacBook Pro 2016 (ubuntu-22.04.3-live-server-amd64.iso). Why does nan UI look for illustration a terminal (see nan pursuing picture) alternatively than each nan beautiful UIs that I spot from others?

picture of screen