Why are Guest users able to edit Rich Text fields within a form?

Issue

We created a form with a Rich Text field, but we see that guest users can edit the content in the Rich Text field (including the source).
How do I disable the user/guest from being about to edit the text in this form field? We do not want guests to have access to the editor.

Rich Text fields are intended to be leveraged when user input is required; as such, it is expected for users to be able to edit pre-filled content of a Rich Text field before submitting a form.

If a field needs to contain static text (as entered by the form creator, without the ability for users to enter data), the intended field type to use instead is a Paragraph field
If there is a business use case that requires this to still be a Rich Text style field, another option is Writing a Custom Form Field Type, which can be similar to the existing Rich Text Field.
- If this should only be displayed to logged in users, it’s possible to use the Liferay.ThemeDisplay.isSignedIn() variable to conditionally render the React component, as shown in the following example that would be added here:
```
if (!Liferay.ThemeDisplay.isSignedIn()) {
return null;
}
```
More information can be found in this Form Field Types Reference article