Downloading specific map features

I am a new user. Sorry if I’m asking something very basic.

I would like to download specific landuse features for a relatively wide area, without downloading all other features.

For example, if I only wanted to download areas of brownfield (, is this possible?

Many thanks for any quick guidance (including being told to RTFM, if appropriate).

Thank you very much wowik - this is exactly what I was looking for.