Are cordless shop vacs powerful enough?

Across the reviewers we read, cordless models like the DeWalt DCV580H and DCV581H are praised for convenience and portability but widely described as best for small jobs rather than replacing a full-size shop vac. Multiple owners on r/Tools and r/Dewalt say they handle cars, workbenches, and small construction messes well but bog down on bigger cleanups, and several flag that the HEPA filter clogs quickly.