The 3gp being listed was an accidental side-effect of the current throttling bypass that we use. I defenitely did not expect anyone to actually use that format.
We now have a better fix for the throttling issue. So the current bypass will be turned off in a future release, and with it, the 3gp format will disappear. If you want to make sure it is still listed in the future, add a
Code:
--extractor-args "youtube:player-client=android,web"
to your configurations
Edit: apparently, this forum doesnt support markdown
PS: Dont @ me. I made this account just to reply here and definitely wont be looking at notifications. You know how to reach me