Yep, it looks like the whole system is corrupted by probably breaking up during the upgrade process when a problem occurs with DNS resolution I suspect but please correct me, if I am wrong.
[pi@raspi]$ rpm -q libstdc++
libstdc++-8.3.1-2.fc29.aarch64
libstdc++-9.0.1-0.10.fc30.aarch64
[pi@raspi]$ sudo rpm -V libstdc++-9.0.1-0.10.fc30.i686.rpm
Unsatisfied dependencies for libstdc++-9.0.1-0.10.fc30.i686:
ld-linux.so.2 is needed by libstdc++-9.0.1-0.10.fc30.i686
ld-linux.so.2(GLIBC_2.3) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6 is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.0) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.1) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.1.3) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.16) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.17) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.18) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.2) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.3) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.3.2) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.4) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.6) is needed by libstdc++-9.0.1-0.10.fc30.i686
libgcc_s.so.1 is needed by libstdc++-9.0.1-0.10.fc30.i686
libgcc_s.so.1(GCC_3.0) is needed by libstdc++-9.0.1-0.10.fc30.i686
libgcc_s.so.1(GCC_3.3) is needed by libstdc++-9.0.1-0.10.fc30.i686
libgcc_s.so.1(GCC_3.4) is needed by libstdc++-9.0.1-0.10.fc30.i686
libgcc_s.so.1(GCC_4.2.0) is needed by libstdc++-9.0.1-0.10.fc30.i686
libgcc_s.so.1(GLIBC_2.0) is needed by libstdc++-9.0.1-0.10.fc30.i686
libm.so.6 is needed by libstdc++-9.0.1-0.10.fc30.i686
libm.so.6(GLIBC_2.0) is needed by libstdc++-9.0.1-0.10.fc30.i686
missing a /usr/lib/.build-id/ba/a735e48f9645a7e5bef8b869cd9b61d81e894a
missing /usr/lib/libstdc++.so.6
missing /usr/lib/libstdc++.so.6.0.26
S.5...... /usr/share/gcc-9/python/libstdcxx/__init__.py
S.5....T. /usr/share/gcc-9/python/libstdcxx/__pycache__/__init__.cpython-37.opt-1.pyc
S.5....T. /usr/share/gcc-9/python/libstdcxx/__pycache__/__init__.cpython-37.pyc
S.5...... /usr/share/gcc-9/python/libstdcxx/v6/__init__.py
S.5....T. /usr/share/gcc-9/python/libstdcxx/v6/__pycache__/__init__.cpython-37.opt-1.pyc
S.5....T. /usr/share/gcc-9/python/libstdcxx/v6/__pycache__/__init__.cpython-37.pyc
S.5....T. /usr/share/gcc-9/python/libstdcxx/v6/__pycache__/printers.cpython-37.opt-1.pyc
S.5....T. /usr/share/gcc-9/python/libstdcxx/v6/__pycache__/printers.cpython-37.pyc
S.5....T. /usr/share/gcc-9/python/libstdcxx/v6/__pycache__/xmethods.cpython-37.opt-1.pyc
S.5....T. /usr/share/gcc-9/python/libstdcxx/v6/__pycache__/xmethods.cpython-37.pyc
S.5...... /usr/share/gcc-9/python/libstdcxx/v6/printers.py
S.5...... /usr/share/gcc-9/python/libstdcxx/v6/xmethods.py
missing /usr/share/gdb/auto-load/usr/lib
missing /usr/share/gdb/auto-load/usr/lib/__pycache__
missing /usr/share/gdb/auto-load/usr/lib/__pycache__/libstdc++.so.6.0.26-gdb.cpython-37.opt-1.pyc
missing /usr/share/gdb/auto-load/usr/lib/__pycache__/libstdc++.so.6.0.26-gdb.cpython-37.pyc