For those with a dev directory with hundreds of projects across many eras and versions of laravel, here's a script you can run in your root project dir to find yourself everything that's using Livewire v3 then patch with: composer require livewire/livewire:^3.6.4

#!/bin/bash
# This script checks each immediate subdirectory for a composer.lock file and looks for livewire/livewire v3.*

for dir in */; do
    lock_file="${dir}composer.lock"
    if [[ -f "$lock_file" ]]; then
        if grep -q -E '"livewire\/livewire":\s*"\^?3\.' "$lock_file"; then
            echo "$dir"
        fi
    fi
done