Using Envato for YouTube videos - Is that an on-demand service?


I’m new to Envato so forgive me if this question has already been answered.

I am looking to create a YouTube channel and I want to subscribe and use some of the EnvatoElements tools such as video effects and music for editing the videos.

After reading the license terms, it isn’t clear to me what constitutes ‘on-demand service’, is YouTube considered on-demand? Or am I able to use it freely once I’ve subscribed?