Unity Post Processing Package?

I was watching a YouTube video about post processing in unity that including Color correction, Effects, Lens Settings, and Camera Settings. The video for reference so you know what i’m looking at is here:

is this a unity package?

“This video focuses on URP”. Post processing is built into the SRP packages, you do not need to download a separate package to do post processing in URP or HDRP.

What do I need to do to get this then?

Read the manual.