This is a good software that is designed to download YouTube Video. It is not completely free.With this software you can simply download the whole playlist or YouTube channel at once.

This app works best for saving video lessons, cooking guides or downloading music clips from YouTube and a bunch of other sites. The program supports all available video resolutions: 720p, 1080p, 4K or 8K – the choice is up to you.
MediaHuman YouTube Downloader v3.9.9.78 features:

• Downloads entire playlists and channels
• Supports Ultra High resolutions including 4K & 8K (with audio)
• Downloads several videos simultaneously
• YouTube, Facebook, Vimeo, Dailymotion, and many others
• Extracts audio track and saves it as MP3

Size: 66.9 MB
License: Freemium/€23.99
Requirements: Windows 11|10|8|7
Publisher:https://www.mediahuman.com/youtube-video-downloader/26/