iPhone Duo has a lot of software features praised, but Safari web browsing is often seen as an issue. Here are two tips for improving the experience.
#1: Adjust text size and default website zoom
If you want to maximize your iPhone Duo screen size when browsing, set text size to 90% and default website zoom to 85% for wider layouts. Dylan Mc Donald recommends these settings to enable desktop-class layouts on the folding display. Access via: System Text Size (Settings ⇾ Appearance ⇾ Text Size) and Default Website Zoom (Settings ⇾ Apps ⇾ Safari ⇾ Page Zoom).
#2: 'Wider' extension for Safari
The outer display Safari layout feels cramped due to right-aligned controls. Indie developer Jordi Bruin created a solution: the 'Wider' Safari extension. It’s now a $2.99 one-time purchase and still a work-in-progress but offers a solid interim fix until Apple provides a first-party solution.
Source: 9to5Mac · Summarized by HeadlinesBriefing