@leocg
OK. C'est la vie.

I re-open Opera after having swiped it away or having manually closed it by pressing its power button. Then I log into one of my website accounts. Opera automatically fills in my user ID and password without my having to re-enter my master password to my saved passwords.
Thus, anyone could simply pick up my phone and log in to any of my accounts such as bank accounts, medical accounts, etc., without knowing my user ID or password.

Android version 16
Phone Moto g 2025
Opera version 94.3.4936.87024