Indeed, update to Fedora 32 has broken pre-installed packages that made use of libRlapack.so, as libRlapack.so is not included in Fedora 32.
See e.g. https://bugzilla.redhat.com/show_bug.cgi?id=1805528#c5 for some debate.
This does not however appear to be a problem on fresh Fedora 32 installs, or if you re-build all relevant R packages from scratch. Removing your previous installs of relevant packages, or at the most extreme your full R library - /home/user/R/x86_64-redhat-linux-gnu-library/3.6 - if you're confident you can reinstall all packages you previously had, will fix this.
In this specific case, you may want to try by first removing igraph and re-install it, and then see how it goes.