Isn't that why operating systems let you make separate password protected profiles? Firefox does the same btw except they offer a master password, but what hap

Isn't that why operating systems let you make separate password protected profiles? Firefox does the same btw except they offer a master password, but what happens when you misplace that password? Chrome seemingly assumes that the profile password is that master password which seems like expected behavior to me, I mean how many nested passwords do you need to be satisfied? Also if you have access to the machine saved passwords can still be dug up regardless.