Comment 6 for bug 1864920

> Is it intentional that the library is installed in /usr/lib/arm-linux-gnueabihf?

Yes, debian is moving an increasing proportion of shared libraries to those directories as part of the multiarch effort to support coinstallation of libraries for different architectures.

Your dpkg and apt output looks normal, currently the best explanation I have for your problem is that you somehow got an old version of the library in /usr/lib from a non-raspbian source (or maybe from an upgrade gone wrong if you did an in-place upgrade).