As of my last knowledge update in September 2021, Opera for Android did not natively support LastPass integration, and users couldn't use the LastPass extension directly within the Opera browser on Android. However, you had a few alternatives to access your LastPass passwords while using Opera for Android:
Use the LastPass App: You could install the LastPass Password Manager app from the Google Play Store on your Android device. The LastPass app allows you to store and access your passwords, and it integrates with other apps, including web browsers. While browsing in Opera, you could switch to the LastPass app when you need to autofill login credentials.
LastPass Accessibility Features: Some password manager apps, including LastPass, offer Android accessibility features that allow you to use their services to autofill passwords and form data in apps and browsers. You might need to enable accessibility services for LastPass in your device's settings.
Switch to a Browser with Built-In Password Manager: Alternatively, you could consider using a web browser that has a built-in password manager or better integration with password managers. As of my last update, Google Chrome and Mozilla Firefox had robust support for password managers like LastPass on Android.
Please note that software capabilities and integrations may change over time, so I recommend checking the latest updates from both Opera and LastPass in the Google Play Store or their official websites for any changes or new features related to LastPass integration on Opera for Android.