Ain't nuttin' easy this time with damn Age-Restricted videos, sorry.
Supposedly JD2 will work, but I would have to read my intstructions here to figure out the cookies again. Once it is set up, it should download the videos quickly and easily.
9xbuddy will download Age-Restricted YouTube videos right in your browser, but for these it only gives audio with the lower-resolution versions, and the 1080p is silent.
https://9xbuddy.xyz/en-1bq
One would then have to remux the audio from a lower resolution version into the video from 1080p version using something like MKVToolNix / MKVmerge. These are easy for me, but I have used them hundreds of times.
Command line yt-dlp is downloading it very slowly, and gave me this message:
Yeah, it is throttled alright, but I don't have time now to look into whatever PhatomJS is.WARNING: [youtube] I3qdp4cL-vY: nsig extraction failed: You may experience throttling for some formats
Install PhantomJS to workaround the issue. Please download it from ...
My recent mention of yt-dlp: viewtopic.php?p=103479#p103479
In some movie thread a day or two ago ghost posted a link to a version of yt-dlp with a GUI, which makes it much easier to use. Maybe that will work, and faster, for this.
Ghost's discovery of the GUI version: viewtopic.php?p=103491#p103491
I have not tried that version yet.