It is in the specific case that you don't have biometric or PIN login set up on the device and you use a password manager that doesn't require authentication. In that case, the only factor is "something you have". Otherwise, it is still a multi-factor authentication because the device itself still represents "something you have", and your device unlock represents "something you know" or "something you are".
Yes. Please tell my bank that.
They know. The EU directive is quite clear that hw tokens are to be preferred over phones. Banks are cheap though and violate it.
It is in the specific case that you don't have biometric or PIN login set up on the device and you use a password manager that doesn't require authentication. In that case, the only factor is "something you have". Otherwise, it is still a multi-factor authentication because the device itself still represents "something you have", and your device unlock represents "something you know" or "something you are".