After Effects alternative - mainly for 2d motion design and animation
If been, looking my self from time to time to find an alternative to after effects, recently got rid of my adobe subscription - but still could not replace that specific piece of software. Maybe someone has some good experience?
Blender is nice but last time I checked it was not well optimised for 2d animation, motion graphics. But maybe it's time to give it another go - I think it's one of the best open source projects ever. The other one you mentioned lack in the motion design department. Gimp still gives me nightmares.
I use it for basic 2D animation - overlays for videos (captions, title sequences, etc.) and animated diagrams - it works really well when you get used to it (mastering the curves editor is essential!). If you're going to composite what you do onto video outside of Blender (I use Resolve) you need to export as an image sequence in a format that supports transparency (e.g. png).
Sound really good, I actually used blender for video editing back in the day - but got annoyed by it's old interface. Than played a bit with grease pencil and basic modelling, animation - maybe it's time to dive full in. Will check out the video. Thanks!