Wrong variable type on type="number" ngModel binding

Which @angular/* package(s) are the source of the bug?

forms

Is this a regression?

No

Description

having a [(ngModel)] bind of string variable to an <input> with type="number" does change the run time type/does not complain about the wrong type.

Even with "fullTemplateTypeCheck": true, "strictTemplates": true, and "strict": true,

@Component({
  selector: 'my-app',
  styleUrls: ['./app.component.css'],
  template: `
  <input type="number" [(ngModel)]="myStringVar">
  <br>
  {{ getTypeOfMyStringVar() }}
  `,
})
export class AppComponent {
  myStringVar: string;

  getTypeOfMyStringVar(): string {
    return typeof this.myStringVar;
  }
}

Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/angular-ivy-v9mgc7?file=src%2Fapp%2Fapp.component.ts

Please provide the exception or error you saw

No exception or error was thrown, yet the type did change from declared string to number

Please provide the environment you discovered this bug in (run ng version)

Angular CLI: 13.3.8
Node: 18.7.0 (Unsupported)
Package Manager: npm 8.12.2
OS: linux x64

Angular: 13.3.11
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                            Version
------------------------------------------------------------
@angular-devkit/architect          0.1303.9
@angular-devkit/build-angular      13.3.9
@angular-devkit/core               13.3.9
@angular-devkit/schematics         13.3.8
@angular/cdk                       13.3.9
@angular/cli                       13.3.8
@angular/flex-layout               13.0.0-beta.38
@angular/material                  13.3.9
@angular/material-moment-adapter   13.3.9
@schematics/angular                13.3.8
rxjs                               6.6.7
typescript                         4.6.4

as well as the linked StackBlitz with Angular 14

Anything else?

No response

[aceArt-GmbH]

[jessicajaniuk]

This is currently working as intended. ngModel is for template driven forms, and is inherently untyped. Type safety is guaranteed with typed reactive forms, but not with template driven forms.