Using LTO for Fedora package builds

Some packages use LTO (link-time optimization) with the GNU toolchain. In the past, this was problematic because the generated debugging information was not quite usable. Today, it causes problems with some of the hardening quality control tooling because the annobin GCC plug-in may not be active when the final LTO link with new code generation happens (bug 1548821). What's our current take on using LTO for Fedora package builds? Thanks, Florian