Library dependency not picked up by DNF

Chromium will not start because it cannot find `libc++.so˙.
After a system upgrade 39->40, and several iterations of updates pre and post upgrade, where did this go wrong?

Shouldn’t DNF install a required dependency on update or at least system upgrade?

I feel like I should not be installing this library explicitly.

Check the output:

rpm -q chromium libcxx; rpm -V chromium libcxx
$ rpm -q chromium libcxx; rpm -V chromium libcxx
chromium-131.0.6778.204-1.fc40.x86_64
package libcxx is not installed
package libcxx is not installed

Install the missing dependency:

sudo dnf install libcxx