Why is the default value of the SDK client grpc "MaxSendMsgSize" inconsistent with the server grpc "MaxRecvMsgSize"?

[smile-yi]

The server grpc "MaxRecvMsgSize" iuses the default value of 4M and is not rewritten, but the client sdk grpc "MaxSendMsgSize" is rewritten to 128M. What is the reason for this?

server:

func NewService(
	server *grpc.Server,
	serviceConfig *configs.Config,
	visibilityMgr manager.VisibilityManager,
	handler *Handler,
	logger log.Logger,
	grpcListener net.Listener,
	membershipMonitor membership.Monitor,
	metricsHandler metrics.Handler,
	healthServer *health.Server,
) *Service {
	return &Service{
		server:            server,
		handler:           handler,
		visibilityManager: visibilityMgr,
		config:            serviceConfig,
		logger:            logger,
		grpcListener:      grpcListener,
		membershipMonitor: membershipMonitor,
		metricsHandler:    metricsHandler,
		healthServer:      healthServer,
	}
}

client:

defaultMaxPayloadSize = 128 * mb
...
opts = append(opts, securityOptions...)
opts = append(opts, grpc.WithDefaultCallOptions(grpc.MaxCallSendMsgSize(maxPayloadSize)))
opts = append(opts, grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(maxPayloadSize)))