“Of course, each password manager vendor will tell you that all the data is safely encrypted. And that you are the only one who can possibly decrypt it. Sometimes this is true. Often enough this is a lie however.”
LastPass and Bitwarden both show a full strength bar for any password zxcvbn rates above 33 bits. Palant puts nearly every human-chosen password at about 35 bits or less. Microsoft’s 2007 study scored “Password1!” at 63 bits, and zxcvbn gives it 14. The green bar on the signup page measures how good you feel, not how long the crack takes.