Do you have a crash dump by chance? There are debug symbols available and they would as you say be immensely helpful. If you can send the crash with apport it will fetch nad process them automatically. If you can't send it via apport, here they are and you can install locally:
https://launchpad.net/ubuntu/+source/fwupd/1.3.11-1~focal1/+build/19494274/+files/fwupd-dbgsym_1.3.11-1~focal1_amd64.ddeb https://launchpad.net/ubuntu/+source/fwupd/1.3.11-1~focal1/+build/19494274/+files/libfwupd2-dbgsym_1.3.11-1~focal1_amd64.ddeb https://launchpad.net/ubuntu/+source/fwupd/1.3.11-1~focal1/+build/19494274/+files/libfwupdplugin1-dbgsym_1.3.11-1~focal1_amd64.ddeb -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1900107 Title: fwupd is eating 100% CPU for 30 minutes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fwupd/+bug/1900107/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs