Tiny Slider 2 VS impress.js

You mean this one - https://github.com/ganlanyuan/tiny-slider ?

You should use tiny carousel it's the successor of popular OwlCarousel2 There's also slick carousel which seems pretty similar with OwlCarousel2

Are you creating your own slider? You a library like Tiny Slider (https://github.com/ganlanyuan/tiny-slider) or Owl Carousel.

Tiny slider

I use Tiny Slider on my site. Works well.

I remember a few years ago some more dynamic presentation modes making a bit of a splash. I used one of them[1] to good reception in at least one talk, but ultimately it felt more like really slick slide-to-slide transitions than a fundamentally different paradigm.

[1] https://impress.js.org/

What do you mean by interactive? If you're talking slideshows, then stuff like reveal.js, impress.js, deck.js, or shower would do the trick.

I've looked at impress.js and reveal.js. Impress feels a little dated to me (very Prezzi-like) and not very accessible if I wanted to hand out the url.

For other programatic methods, there are plenty of non-LaTeX tools, reveal.js and impress.js for starters, but the learning curve for someone not already familiar with web design and javascript is too high IMO just to get prettier transitions and embedded video.