Any device cable that is not USB-C. Kids these days will never experience the frustration of having to try connecting a USB cable, realizing it is in the wrong side, flip it, try again, only to realize it was correct the first time.

Dedicated laptop charger slot. Most laptops these days are coming with USB-C charging capability. No need to use a special connector, you can simply plug a charging USB cable anywhere and it works.

Intel. When Apple moved towards their own ARM chipsets (which are amazing by the way) instead of using Intel ones, they started the slow end of this giant. Intel in my eyes is the new Nokia. It used to be the king of the industry, but slowly it faded away to irrelevance. Now Microsoft is pushing towards ARM as well. They released this ARM based dev kit some time ago, and now they are saying this: "Windows is preparing developers for an Arm future". Intel seems to be trying to do anything to survive, they tried making a Bitcoin miner, but they recently cancelled it. They tried doing 3D cameras with RealSense, but they recently cancelled it. They tried competing against NVidia with their own Discrete GPUs, but couldn't even touch NVidia's performance. I don't see a bright future for Intel.