### Preflight Checklist

- [X] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
- [X] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
- [X] I have searched the [issue tracker](https://www.github.com/electron/electron/issues) for a feature request that matches the one I want to file, without success.

### Electron Version

13.1.7

### What operating system are you using?

Windows

### Operating System Version

Windows 10 version 20H2

### What arch are you using?

x64

### Last Known Working Electron version

12.0.15

### Expected Behavior

Checking `navigator.userAgentData` in Chrome 91 returns an array of brands appropriately. Electron 13/14 do not return anything.

This appears to then become a problem for my situation. I am posting a form with hidden variables to a third-party vendor I work with. This form post ultimately loads an iframe.

Expected: As it does in Chrome 91, load the iframe from this third-party vendor.

### Actual Behavior

A header of "sec-ch-ua" is included in the request to the third-party vendor and it is blank. They are rejecting the post because of an invalid header. I suspect this is because Chrome 13/14 does not make this hint data made available correctly.

I tried loading various sites in Chrome 91 that do load brand names in Electron 13/14 and they are empty if you review `navigator.userAgentData`.

### Testcase Gist URL

_No response_

### Additional Information

_No response_
shell/browser/electron_browser_client.h
base::StringPiece scheme,
      bool is_embedded_origin_secure) override;
  void OverrideURLLoaderFactoryParams(
      content::BrowserContext* browser_context,
      const url::Origin& origin,
      bool is_for_isolated_world,
      network::mojom::URLLoaderFactoryParams* factory_params) override;
#if BUILDFLAG(IS_WIN)
  bool PreSpawnChild(sandbox::TargetPolicy* policy,
                     sandbox::mojom::Sandbox sandbox_type,
                     ChildSpawnFlags flags) override;
#endif
  void RegisterAssociatedInterfaceBindersForRenderFrameHost(
      content::RenderFrameHost& render_frame_host,
      blink::AssociatedInterfaceRegistry& associated_registry) override;
  bool HandleExternalProtocol(
      const GURL& url,
      content::WebContents::Getter web_contents_getter,
      int frame_tree_node_id,
      content::NavigationUIData* navigation_data,
      bool is_primary_main_frame,
      bool is_in_fenced_frame_tree,
      network::mojom::WebSandboxFlags sandbox_flags,
      ui::PageTransition page_transition,
      bool has_user_gesture,
      const absl::optional<url::Origin>& initiating_origin,
      content::RenderFrameHost* initiator_document,
      mojo::PendingRemote<network::mojom::URLLoaderFactory>* out_factory)
      override;
  std::unique_ptr<content::LoginDelegate> CreateLoginDelegate(