Useful World War II roles for surviving pre-dreadnoughts

What useful World War II roles remained for pre-dreadnought battleships?

They could provide shore bombardment, coastal defense, and port protection, but not replace modern battleships in fleet actions.

Surviving pre-dreadnoughts were unsuitable substitutes for modern battleships in fleet combat. Their heavy guns and protected hulls could nevertheless support armies near the coast, defend ports, and reinforce fixed coastal positions. Greek ships and other old units demonstrate that such vessels still existed during World War II. The useful comparison is therefore role-specific: obsolescence in a fast battle line did not erase value as a local gun platform.