Animate banners, social posts in Figma (plugins, workarounds in 2022)

Hey!
I’d like to adopt Figma for creating simple banners, socials posts, stories and animate vectors & text straight in Figma, or easy 3rd party app. Then ideally export to video (mp4).
My wish is to avoid After Effects.

Can anyone suggest cheap/free plugins, workarounds.
Projects are one off, so pricey subscriptions are not economical.
Thanks!