There are now efforts to turn computers into C Machines with hardware memory tagging.

While Intel's MPX extensions were a failure, Solaris makes use of ADI on SPARC, iOS uses PAC, Google is researching adopting ARM MTE into Android, ARM sponsors CHERI with Morello project, Azure Sphere has Plutonium, and so forth.

However these are all pontual efforts, and their large scale effects will take years or decades to start making a difference.