You can use yt-dlp. There are many ways to install it, one of them is with the package manager of your distro:

sudo apt install yt-dlp

To download a playlist you only have to type in a terminal yt-dlp and the URL of the playlist you want to download, and press the Enter key. For instance:

yt-dlp https://youtube.com/playlist?list=PLvvDxND6LkgB_5dssZod-3BET4_DFRmtU

This program not only downloads videos from YouTube, it can also download videos from many websites.