8K Video Downloader provides different ways to download videos even they are private or are behind accounts. There are two ways to download secure/private/age-restricted videos with 8K Video Downloader.
Watch and Download
With this feature, you can browse, watch and download videos with a built-in browser. The interface is straightforward with all the control needed to control your browser over the YT website. You can right-click on any video link and choose the Download this video option to start downloading it.
Whats New
Updates: official site does not provide any info about changes in this version.
Homepage

https://rapidgator.net/file/2d14d7ec0dd3deeac68d65dbcc4d75e1/8K.Video.Downloader.v15.0-BTCR.rar.html

https://www.uploadcloud.pro/3ta1dcrhxr99/8K.Video.Downloader.v15.0-BTCR.rar.html

https://rapidgator.net/file/0eda8dec04849e0074525ae3fabcc80f/8K_Video_Downloader_15.0_Portable.rar.html

https://www.uploadcloud.pro/3a20orh5glt1/8K_Video_Downloader_15.0_Portable.rar.html