Are the boost libraries in RHEL 8 built with multithreading -mt support?

Issue

• The upstream boost library naming documentation states that Each library filename is composed of a common sequence of elements that describe how it was built.
• Boost libraries with -mt in the name indicates that the library was built with multithreading support enabled and libraries built without multithreading support can be identified by the absence of -mt.
• On RHEL 8, the boost library and package names do not contain -mt. Are the boost libraries built for multithreading?