For me its the ‘Knock Code’ that LG had on their phones (I really wish LG still made at least the V series phones)
Basically there was a four-square area and you set up a sequence of where you would tap to unlock the phone. That set of squares was only shown when you set up the code
Then, to unlock your phone, you would tap those areas in the sequence you set up (even with the screen off).
Fingerprint readers are nice, but I really do miss the knock code
Edit: did find this article with a way to do the knock code, but if done wrong, could brick your phone I guess.
Plus, article is from 2014. When I looked at XDA’s info on it (they also being the developers) it looks like development on it is over, but individual modules may or may not still be supported by their devs
I miss the gboard of 5 years ago when typo correction was spooky good.
I miss uploading my own songs to Google music.
I miss easily flashable bootloadera and roms.
I miss the three virtual navigation buttons.
I miss setting different notification dot colors for different apps.
I miss setting different notification sounds for different people.
Half of those things still exist? On my galaxy I still use nav buttons, have different notifications sounds for different people and apps, and a ring around the camera lights up with different colors for notifications
Why HAS autocorrect gotten worse for almost every keyboard? Gboard, Swiftkey, etc. It drives me nuts! I used to type out a sentence like this in half the time.
Those are still a thing, at least on Pixels you can switch between gestures and the three buttons.
All of this, but I’d replace the 3 virtual navigation buttons with the 3 physical navigation buttons we used to have!