xmanmonk

Check out yt-dlp or ytdlnis on github.

I believe in KDE you can use KDEConnect on the phone and on the computer. This should allow the phone to appear as a mounted drive in Dolphin, and thumbnails should then appear.

Ah. Clever!

Apparently, I’m a noob. What’s an activator?

That prompt typically means the command line is expecting more. Try putting the url in quotes. That may fix it.

I use nicotine+, and you have to set the port you’re using, and either make sure it’s forwarded, or turn your router’s uPNP setting on so that nicotine will handle the port for you.

Have you tried Anna’s Archive?

Yes, or nicotine +