Learn to use LATTICE DEFORMERS to animate a "static mesh" in a Level Sequence.
Lattice Deformers are a common animation trick for quickly modifying a mesh with needing to fully rig an object or character. UE 5.5 has released these new tools (3 lattices, and also a sculpt deformer - though that's not covered in this video), and this tutorial shows you the basics for using a 2x2x2 lattice to animate a simple "static mesh" in a level sequence.