I'm also thinking a dep file needs updating or a dependency extension which would eventually lead to libGLESv2 has not loaded, because in tc-8 cairo was built against libGLESv2.
For what it's worth:
In 7.x/x86 repo:
libcairo.so was not built against libGLESv2 (libGLESv2 is optional) as a result pavucontrol does not require libGLESv2
However, in these repo's
7.x/x86_64
8.x/x86_64
8.x/x86
libcairo.so was compiled with libGLESv2 support.
If you follow the dep tree either pavucontrol or pulseaudio lists:
gtkmm/gtk3
pango
cairo
libGLESv2
as dependencies