How do I scale a prototype up to full width?

[Haroll]

@Gavin_Cammell

Is this just something that Figma isn’t capable of doing?

I’m afraid you already have the answer.
Buuuut, you’re not the only one looking for this feature. You may upvote it so it comes to Figma’s attention

Adaptive/Responsive Preview

Currently, the preview is locked to whatever dimension the design is (if your design is 1440, the prototype/preview will always bee 1440). This is fine if you’re designing for mobile, where the dimensions are largely fixed; however, it’s a nightmare for Web. Especially if you need to send the design for user testing or stakeholder feedback. If their screen dimensions are not exactly the same as the design, they won’t see an accurate representation. The preview should be ADAPTIVE to the design’s…