No, one cannot repeat often enough: The Casimir effect has nothing to do with the vacuum. By definition the vacuum is empty. There's really nothing by definition, and so there cannot be forces.Vacuum energy is usually not of interest to particle physicists, since it can be thought of as a shift in the ground state energy (usually taken to be zero) of a system.
However, vacuum energy is of interest to cosmologists because of its possible role as a source of the cosmological constant and/or dark energy which drives the expansion of the universe.
Vacuum energy also manifests in the famous so-called Casimir effect.
Or a related recent paper