There are Methods to Download Videos from YouTube.
Put in the Open Video Downloader
There needs to be an immediate implementation of Open Video Downloader. This programme, which is both open source and free, makes downloading videos from YouTube on a Mac or PC a breeze. The document can be accessed at this link. Click the GET button to download and install the Microsoft Store version if you're using Windows and the other version isn't working for you. Click the Download button on the website to begin the installation process on your Mac.
Launch your preferred web browser and navigate to the YouTube page containing the video you wish to save.
Find the video that you want to download. Just type the movie's name into the “Search” bar at the page's top to find it quickly. When you click on a video to play it should begin playing instantly. Remember where you saw this video: Select the address in the address bar, and then press Ctrl+C (PC) or Command+C (Mac) to copy it (Mac).
Play some music in VLC. If you're using Windows or macOS, go to the Start menu or Applications folder. The object is orange and resembles a traffic cone. If you don't have VLC, you can download it for free from https://www.videolan.org. The VideoLAN Client (VLC) is a no-cost, open-source video player that plays many different file types and includes a number of helpful extras.
Get a hold of the video's URL.
It's time to establish a new data link. Through the use of a web browser, VLC can play network streams. Methods differ slightly between Windows and macOS. In Windows, go to Media > Open Network Stream.
The Open Network option can be found in the File menu on a Mac.
Go ahead and fire up Open Video Downloader.
YouTube video playback issues? Try pasting the text below into a new Notepad or TextEdit document. YouTube.lua is the recommended filename for this purpose. Navigate to “C:Program Files (x86)VideoLANVLCluaplaylist” in a Windows file manager. Right-clicking VLC.app in a Mac's Applications folder will reveal its contents. Navigate to “/MacOS/share/lua/playlist” from there. The downloaded “youtube.lua” file should be used in place of the “youtube.luac” file. 
Make a duplicate of the address bar by right-clicking it and choosing the option. At the very bottom of the window, you'll see a lengthy address; copy that. Highlight the entire address, and then click the “Copy” button.
To copy a link in Windows, right-click on it and choose the appropriate option from the context menu.
When using a Mac, right-clicking a blank space brings up a contextual menu, from which you can choose Open URL.