Are they doing anything to fix it or just raising awareness?

Here's an example of measuring packages that report warnings for software that has suspicious conversions. Compile with `-Wconversion` with both 32-bit and 64-bit time_t, and see what the difference is. https://github.com/mkj/yocto-y2038

That is using yocto, but you could probably do something similar with other less-embedded distros too, if you can rebuild the world.

FWIW I didn't find much interesting with that apart from busybox dhcpd.