The video is SUPER! I only have a comment on the title of the video. It is like asking if it is possible to fly to the moon in a glider.... The topic of the video includes a question suggesting the possibility of including animation in PDF format, and the video beautifully presents completely different suggestions than PDF format. Best regards, J.
We don't have free video on adding Lottie files, but it is covered in one of our paid video courses: academy.ajarproductions.com/courses/1632665/lectures/37234323
Thanks for your question. The main reason to use in5 for prototyping with in5 would be if you want access to the tools available in InDesign, as well as the integrations with other Adobe tools (e.g., Photoshop & Illustrator). I'm also not sure that Figma can export standalone HTML. That might be of use for the developer.
Yes, Flash Professional was renamed to Adobe Animate. You can embed HTML5 output from Animate using InDesign & in5. However, the none of the output options from Animate will work in a PDF.