Something that PWAs lack (intentionally) is the browser chrome, at least once saved to homescreen.
That means when you need to login, you cannot ‘share’ the page to a password manager like the browser can, or lastpass/1password.
Apps can get around this by including it as part of their inputs, e.g:
The circular icon with a squiggle in the email field opens up your default password manager, which can then fill in the username/password fields. Without it you have to app-switch, which adds many steps to the process, and will reduce the numbers using PWAs.
Can an equivelent be created for chromeless browsers?