Flatpak is a solid-style Icon from Simple Icons set.

The Flatpak icon shows a bold rounded hexagonal form with white triangular cutouts meeting at the center. Drawn in the solid style on a 24px grid, it uses clear geometry for recognition at small sizes. Use it for Flatpak app listings, Linux software centers, package managers, repositories, and developer documentation. It belongs to Simple Icons free set in the Brand Logos family.