class FormController extends Controller
{
    public function index(Request $request)
    {
        Log::channel('stderr')->info('LOGGING TEST FROM CONTROLLER'); // This works perfectly as expected, i.e. visible with `docker-compose logs` command on the Host!
    }
}

class SendMailJob implements ShouldQueue
{
    public function handle()
    {
        Log::channel('stderr')->info('LOGGING TEST FROM JOB'); // This doesn't work X(
    }
}

[program:form]
command=php /usr/local/laravel/artisan queue:work database --sleep=3 --tries=3
user=www-data
environment=HOME="/home/www-data",USER="www-data"
autostart=true
numprocs=2
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes=0
stderr_logfile=/dev/stderr
stderr_logfile_maxbytes=0