YOU TUBE audio to audacity

Mac OS Mohave version 10.14.4
Processor 3.2Ghz. Core i5
Audacity 2.3.2

Can someone plz help me? I want to export a 2 minute audio from YOU TUBE into Audacity. I think the last Youtube reference on the forum was 2008. HELP

The last “foldback” software I used was Soundflower, which is very old and no longer supported.

There is a Soundflower replacement I have to look up.