Endermen can pick up some non-solid blocks

Warped Fungus, Warped Roots, Crimson Fungus and Crimson Roots are tagged with #enderman_holdable.

The fungus variants are likely intentional, but the roots seem out of place: although Brown and Red Mushrooms also have this tag, similar tiles to roots (Grass (not to be confused with Grass Blocks), Tall Grass, Warped and Crimson Vines, even Nether Sprouts) do not.

Endermen spawning in Warped Forest biomes can semi-commonly be found holding the Warped variants.