Scroll Snap
The scroll-snap-type property is part of the CSS Scroll Snap Module. It is a relatively new property and it can be seen in action above by gently swiping the trackpad or mouse top horizontally in the appropriate direction.
When viewed on a touch device like an iPad or iPhone it performs just like a swiper slider.
Slideshow Replacement?
Most slideshows are completely unsuitable for reaponsive page designs that will be viewed on mobile devices. The basic requirements are to lazy load the images to have smaller images for mobile users to decrease download time, to save battery power and reduce data download requirements.
The snap images are lazy loaded and a smaller image file is provided for mobile users.