I haven't followed the Netflix password news all that closely because I barely ever use Netflix - but when I do use it it's through password sharing an account my sister pays for. That worked as recently as just a week ago.
If someone is actively watching something and a second person logs in to the same account and starts watching something, Netflix recognizes it within a minute and displays a message to the second person that logged in stating that someone is already logged in to the account.
As long as you're not watching at the same time as each other, you should be good to go.
That’s not how it works. You will be forced to set a “home” for your account, which then IP locks your account for stationary devices. Anyone else not on that IP and not on a mobile device won’t be able to watch.