TL;DR:<p>Why prioritize “browser choice” over “full experience choice”? The answer is obvious if you're an ad company browser harvesting users to sell.<p>Paradoxically, forcing browser choice across the whole market will reduce choice, and Google knows it.<p>. . .<p>A handheld appliance recommendation that says this:<p><i>The user’s choice of default browser must be used for In-App Browsing (SFSafariViewController)</i><p><i>Currently most In-App browsing on iOS is locked to Safari which provides Apple a very significant advantage and a lot of traffic. It is critical for browser choice that if a user decides on a particular browser, that browser is then used for web browsing by default across the OS including in In-App Browsers.</i><p>... is developer hostile, security hostile, and ultimately user hostile.<p>A key benefit of developing native apps for iOS is that you no longer have to develop for the wild west. The lack of fragmentation (browser engines, OS flavors, UIs, hardware...) is what lets you, the developer, build once and trust that it’ll work everywhere—rip that away, and you're throwing your users into a fragmented, glitch-ridden mess. Consistency is stress-relieving for the user, and the expectation that app store apps will behave differently inside themselves doesn't fit anyone's mental model of how apps work.<p>Even billion-dollar banks can't (or won't) untangle the extra care needed for making Firefox or Safari work with their systems on a PC. So why on earth would we expect, or want, indie devs to battle with arbitrary web engines inside their native apps? No developer wants users yelling at them because OIDC flow, embedded maps, or any other in-app webview doesn’t work in the developer's app just because the user clicked "accept" on a browser-swap ad. Billion dollar bank, or indie dev, the easy way out will be a Get Chrome button.<p>Most of today’s new programmers weren’t even alive for the Internet Explorer hegemony, so they can’t be blamed for not grokking the decay that sets in when a single engine dominates. But when the last defense against “Chromium Everywhere” is bulldozed by those who can’t stand the thought of consumers choosing a product that just works, we're all worse off no matter our device, OS, or, yes, browser of choice.<p>The inevitable single choice across the entire device market and app ecosystem is no choice at all.