You can set a default for opening links outside of an app. Like, i can set an app (if there’s an option) to always open links externally and it will open in my default browser. Unfortunately, from my understanding, apps are required to use default safari when opening a link in-app. It’s really inconvenient to open every link I click in the voyager app externally so I just open links in reader mode as default.

Technically all browsers are safari on iOS but apps like chrome, Firefox, etc. only use the shell.