Hi there, I'm Matt Sergei (do call me Matt, please) and can do your animations like in both movies you have attached.
This will be SVG based animations - the dots will be filled circles in SVG, and the paths where they move to their final positions will either be drawn (not fond of it, too much work for the budget) or scripted with GSAP (javascript) library to move and stop moving till their center hits the destination triangle border.
So both animations would be web based, with triggering on demand (say, with a button) or automatically played. And I can screencast them to videos.
Do let me know. I'm on vacation yet can do these animation in 24 hours if you provide/specify shapes to use (or. approve the images to use etc). Like this image that can be completely changed (all text captions removed as it's in SVG format) and it's in public domain:
[login to view URL]:[login to view URL]
Otherwise I'm a webmaster and IT developer for 26 years, scripting web animations for 7+ years.
For lack of better demo here are some animations:
[login to view URL]
[login to view URL]
Regards and hope you're safe,
Matt