Gif animation longer than "500" frames?

Question

gif

Hello. I'm doing animation, but I ran into a limit of 500 (840) frames in photoshop, you can't directly output it to gif from AE. Camtasia Studio outputs gifs of very poor quality. Can you please tell me any solution to this problem?
Thank you.

Answer 1

what if sony vegas?

Answer 2

https://www.youtube.com/watch?v=mCefqK5vqUQ
Watch after 3:15