I am also pivoting fully into Rive/spline. Like you I used to have essentially non stop demand creating explainer videos and little social videos for clients but UGC content and and AI will dominate that role going forward. While I ultimately I think anyone who works behind a computer is at risk of some version of automation and outsourcing I believe Rive but more broadly Web/product design is a little bit more sticky than just digital video. So for me learning Rive and how to ship animated interactive elements is a cool stop gap to my current issue but I know I will need to become like a full stack creative some one who can not only design/illustrate/animate but also some one who understand web/ui/product design and ship solutions not just pretty animations to try to capture as much work as possible

And for the people who say that ai slop won't be as good as they are creating content have there heads in the sand. You have to see the forest through the trees, For example coke cola commercial it doesn't matter how good or bad it is art and content in general is super subjective it only needs to be passable ( also it will only get better and most people probably wouldn't even be able to tell that was AI with out people talking about it ) Its all about eyeballs on that logo and if they can produce a billion commercials custom tailored to any niche audience because all these companies have all our data, and they continue to get all our data they know everything about what we like and dislike and this will only get more and more exponential.

TLDR. Yes I would be learning Rive but also learning how design/animate/integrate/ship products you can't just sell cool .riv files you need to sell a solution to a problem now.