Lg g7 - press power button and unlock screen becomes option.

Lg G7 - I have fingerprint and pin for security but if I press power button I get unlock icon and so anyone can swipe up to unlock phone

Welcome.

Does this persist in Safe Mode?

Do you know how to boot into Safe Mode?

Welcome to Android Central! If your Secure Lock Settings (under Settings>Lock Screen & Security) interval is set to a fairly long time (like 5 minutes), that means that after the screen goes to sleep, you can still open the phone without having to enter a screen unlock password/PIN/pattern for 5 minutes. Change that interval to something short. There should also be an option to automatically lock the screen when you press the Power button to turn the screen off.

I'm assuming the G7 is capable of Android Safe-Lock feature. If activated it will allow the phone to be unlocked in specific areas, like your house.....
Smart Lock for Android automatically keeps your phone or tablet locked when it's not with you, and unlocked when your device is safe. You can choose to have Android unlock based on Bluetooth connections, trusted locations, when you're carrying your device with you, or when it recognizes your face or your voice.

Search for Google Smart Lock.