Android 11 has been out for several months, and I'm surprised that LastPass hasn't been updated to integrate the passwords via the other input-method editors (IMEs). This specific function is detailed here: https://developer.android.com/guide/topics/text/ime-autofill
I'm not sure if this would alleviate some of the issues with the autofill not consistently working, but it it'd be nice to have especially since this is basically the same approach that's being used in IOS.
Thanks for reaching out. While our development team does hope to update LastPass on Android 11 to support other input-method editors in the future, we don't yet have any news to share just yet about upcoming releases. I have passed your feedback along to our team as well to show them interest in this idea as well.
It's 2022. You still can't support a feature that's been around in Android for 2 years? Your competitors have done it and it is far more reliable of an autofill option.