Samsung
Turn Autofill Service On or Off auf Samsung
The Autofill service decides which app fills in fields like usernames, passwords, or delivery addresses across your Samsung phone. If two providers are active at once, or if the wrong one is selected, forms can show outdated entries or none at all.
Where to change it
Go to Tap on Settings ➔ Tap on General management ➔ Tap on Autofill service ➔ Tap on Autofill service ➔ Choose None, Google or Autofill with Samsung Pass.
Select None to turn autofill off entirely for every app and browser. Select Google if you keep your passwords and addresses in your Google account. Select Autofill with Samsung Pass if you store logins and cards in Samsung's own vault instead.
Switching providers does not delete saved data, but only the active provider will offer suggestions going forward. If you use a separate password manager app, leaving this set to None usually avoids conflicting autofill prompts.