OK, nice!The search on "iphone5 battery replacement" worked first time (see image). I tested by downloading 001 which worked fine.
I'm not really sure, but I think that straw-viewer has it's own search mechanism (from invidious: e.g. https://invidious.snopyta.org/), but youtube-dl comes in for playing (and downloading perhaps, but, again, not sure).I also tested Menu>Multimedia>GTK Straw Viewer in which the "iphone5 battery replacement" search works properly. I'm guessing it also uses youtube-dl. If so I guess it's using the new version you uploaded as I deleted the old non-working version. If this is so the "search" seems to work better in GTK Straw Viewer.
YouTube-Get v2 is still a menu entry. Can I remove it by deleting it from /usr/share/applications and running fixmenus? I thought I wold also remove the entry for Menu>Multimedia>GTK-YouTube-Updater as well if it is no longer usable.
Yes, remove what you like from the Menu, fixmenus doesn't exist in BD (in Puppy only) but I guess that the menu entry will disappear by itself when removed from /usr/share/applications.
Fred