[Bug] In Code Editor Monaco, pressing Insert on keyboard does not stop following characters from being moved to the right

Reproducible in vscode.dev or in VS Code Desktop?

• Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• Not reproducible in the monaco editor playground

Monaco Editor Playground Link

No response

Monaco Editor Playground Code

const value = /* set from `myEditor.getModel()`: */ `function hello() {
	alert('Hello world!');
}`;

// Hover on each property to see its docs!
const myEditor = monaco.editor.create(document.getElementById("container"), {
	value,
	language: "javascript",
	automaticLayout: true,
});

Reproduction Steps

In first line of code in Monaco editor playground, pick a random insertion point,
press Insert key on keyboard,
and type "abc".
Following characters will unexpectedly be moved to the right.

Actual (Problematic) Behavior

Following characters are moved to right.

Expected Behavior

Following characters should not be moved to right.

Additional Context

No response

Start with the Monaco editor playground and the provided JavaScript reproduction, then trace how the Insert key changes typing behavior. Confirm the issue by placing the caret in the first line, pressing Insert, and typing "abc"; done means the characters following the caret are overwritten rather than moved right.