Hey @GeS
I have been using Locomotive on a few projects and recently switched them all over to the GSAP Scroll Trigger plugin. Once I understood how it all worked the change over was fairly easy. I can achieve the same effect, and more, with so much more control. And it's all in the same comfy GSAP ecosystem
This is a very basic (and ugly) test I put together to create the Locomotive smooth scrolling effect for an entire web page using the new Scroll Trigger plugin.
https://codepen.io/andystent/pen/XWXbMLo
You can then combine this with something like Jack shared above to get the horizontal scrolling panel. I'm going to be doing this on a new project starting next week. Can't wait!
https://codepen.io/GreenSock/pen/1e42c7a73bfa409d2cf1e184e7a4248d
Good luck!