Hi Ruth,
This is true, but as from Windows 10, the list is only visible when on text password login.
When on picture password login, only the last logged in user is show.
To switch user you have 2 solutions:
Login to the last user (I you know the picture password), then Windows Start button, then click on active user and choose 'switch user'
If you don't know the picture password or you don't want to log in, you need to switch to the text password, then all the PC users appear on the left side. You choose the user you want, then click the picture password button and then you can log in.
Please add all users of a PC to the left side on the lock screen of text password AND picture password.
Thx
Kevin