Your animations are important tools, and I expect they will have some longevity. Thank you for sharing them so openly.
I do wonder about the longevity of videos, especially short forms. Old lecture videos from Gilbert Strang might bear preservation, updating as formats evolve. Text, especially products that end up in libraries, have excellent odds at preservation. I am less certain that 20 year old 30 second tictoc videos have the same preservation potential.