It’s not about transitions.
It could be a swipe but could just be a cut to.
GIF is usually low res.
High res is needed so when they cap its a good result and the rightish size for a meme.
Why don’t we canvas QRG for an mp4 maker.
That way you aren’t doing hack work compared to your usual work.
BUT it would be helpful if you chose the good memes. I know you know what they are.
What about a trial run on collecting Trump killer memes eg “They’re after you. I’m just in the way.” is one of the best memes out there. Whoever did that deserves a medal.