Samsung
Change Default Browser App auf Samsung
Installing Chrome, Firefox, or Opera does not automatically make it your default browser on a Samsung phone. Links from messages, emails, and other apps keep opening in Samsung Internet until you tell the system to use a different app instead.
This behavior comes from the default apps manager built into Samsung's settings. It controls which app handles web links system-wide, separate from which browser you happen to have open at any given moment.
To change it, go to Tap on Settings ➔ Tap on Apps ➔ Tap on Choose default apps ➔ Tap on Browser app ➔ Set the Default browser app. Pick the browser you want links to open in going forward.
Only browsers already installed on your phone show up in this list. If your preferred browser is missing, install it first, then repeat the steps above.
This setting affects every app that opens web links, not just your home screen shortcuts. If only one specific app keeps ignoring your choice, check that app's own in-app browser setting instead, since some apps override the system default for their internal links.