Possibly the most annoying UI trend of the last few years is websites changing from

[username] - [ password ] -> Login

to

[username] -> Next -> [ password ] -> Login

@pdwerryhouse And then there's all the A/B tests. Type in your username, no your email, no your phone number. Then type in your password, ha sorry just kidding, go check your email for a "magic link". (That's Doordash.)

For the last 2 years, Facebook consistently refuses my first login attempt. A retry succeeds -- and ignores my original link and takes me to my feed. I have no interest in my feed; if I hit <back> after the first login failure and resubmit I get to my desired destination.

@akkartik @pdwerryhouse yes, the failure of deep-linking through authentication sucks.