Why session_update event from dapp does not wait for the approval of the wallet?

[yaziciahmet]

As far as I tested, when I run the following from the dapp:

const { acknowledged } = await provider.signer.client.update({
  topic,
  namespaces,
});
console.log("waiting acknowledgement...");
await acknowledged();
console.log("acknowledged");

and listen for this event on the wallet side as:

web3wallet.engine.signClient.events.on("session_update", async (update) => {
  console.log("session_update", update);
  await new Promise((res) => setTimeout(res, 5000));
});

the dapp doesn't care about what the wallet returns or says even though in the namespaces when updating the dapp adds unsupported chains. And when I check the active sessions on both the dapp and the wallet side, I see the new namespace added to the session. Is this the expected behavior? If so, is there a way to enforce to wait for a response on the dapp side, or at least prevent requesting unsupported chains?