Bar shape: Bubbles
No shared tray: each link floats in a frosted pill of its own and lifts when you point at it. Scroll down and the bar tightens up (Shrink when the page scrolls).
Try the others: Pill · Segmented · Underline glide · Dock · Neon · Tabs · Tiles · Bubbles · Brutalist · Gradient band
Set it in Content > Menus > (your navbar menu) > Behaviour > Bar shape, or for one page with [navbar bar="bubbles" /].