You have both pulseaudio and pipewire running. From my understanding, there is a usecase for having both, however, the usual approach would be to use one and not the other.
pamac install manjaro-pipewire wireplumber should get rid of pulseaudio and then systemctl --user enable --now wireplumber.
This way, zoom works for me. But 5.10 of zoom has other problems, you should test it with a different program.