Rich Content Field – Width Always Limited to 350px Regardless of JSON config

I am using a Rich Content field in a Wix Data Collection.

Even when I programmatically set htmlData.config.width, htmlData.style.width, metadata.custom.layout.width, and wrap the HTML with inline styles,
the Rich Content renderer still limits the max-width of the content to 350px.

The issue occurs even if I store the exact Rich Content JSON I generate.
The rich content editor appears to enforce a default internal width for Rich Content elements.

Question:
Is the default width (350px) hard-coded in the Rich Content field schema?

And if so:
• Can it be changed at the collection level?
• Or is it currently locked by Wix’s internal Rich Content engine?

I need the Rich Content field to render at a wider layout (e.g., 940px).

Please provide the correct method or confirm if it is a platform limitation.

Here is the screen shot

But I want it like this after manually setting the field width to 950