I have never had a phone that has successfully unlocked the first time using biometrics. I wouldn’t say it is a solved problem or a solution. There are also implications with law enforcement when using biometrics. They can’t force you to unlock something with a password, but they can forcefully unlock something with your fingerprint.
The difference being that the owners of the works in museums have given permission to view the content, and the people viewing the content are rarely trying to resell what they are seeing.