Try either Jdownloader - it’s an app you download.
Or pastedownload - you simply paste the link of the video you want. I’ve found this can be ok sometimes and mess up other times.
If you are OK with using the command line, yt-dlp works perfectly - and doesn’t depend on any external website (except the one you download from - in this case pornhub, but it supports 100s of others as well).
Use this link instead, if going with jDownloader. It leads to the Ad-free Setup.
The default setup contains Ads it will try to install. https://jdownloader.org/jdownloader2