Just checked on my iPhone and to log in on a website, it's tap in the field, select the user/pass, login. And on an app, it's tap in the field, tap the key icon

Just checked on my iPhone and to log in on a website, it's tap in the field, select the user/pass, login. And on an app, it's tap in the field, tap the key icon, pick the user/pass I want to use, auth with fingerprint, login. [edit: just to say, it's actually tap the key, auth with fingerprint, then pick user/pass -- I reversed the order of auth/pick by mistake.] I don't understand the convolution? Doesn't seem like an excessive number of steps either. Am I missing something?