
Not displaying local interface(s) despite giving permissions researched through forums sudo dpkg-reconfigure wireshark-common ; sudo chmod +x /usr/bin/dumpcap and sudo chown -R $LOGNAME /usr/bin/dumpcap. However the System package works.
Fail to open due to error "flatpak-org.wireshark.Wireshark-21301.scope: Failed to add PIDs to scope's control group: Permission denied". Apply work-around "systemd.legacy_systemd_cgroup_controller=1" in boot parameter, but face other error: "kernel: [ 79.453863] traps: bwrap[5036] general protection ip:xxxxxxxxxxxx sp:yyyyyyyyyyyy error:0 in libc-2.27.so[7f5f11af7000+1e7000]"
Wireshark is, in my opinion, an excellent tool for troubleshooting network issues. Flathub's packaging of the app works as expected. The install was simple and the resulting application works the same as it does on other platforms.