Ideas:

• Horizontal scroll how-to
• Scroll Parallax
• Pricing tables (maybe with CMS schema)
• Popover topnav
• On-scroll stack with tabs
• General on-scroll animation guide
• 3D card on-mouse
• "native" Slider with overflow scroll and scroll snap, that on pointer devices reads the scroll css properties and mimics the behavior with drag and pointer events

References:

• https://www.framer.com/
• https://payloadcms.com/