Everyone is actually losing ground to Tesla, not catching up. The is going to become crystal clear in 2022 when Tesla has further production ramp which no one else is going to have. It's almost comical at this point.
Losing ground because Tesla is now in a sprint and they're at the bottom of the Manayunk Wall. They were 5 years behind up til recently, and have been ~7 years behind since 2018. At a certain point it felt like they weren't too far back, but that was just because everyone was climbing a steep hill. Turns out Tesla was nearing the top and is now nearly over it.
Now that Tesla is blasting up the S-curve, the lead will again become much more apparent as we head toward 2023-25 and the inevitable shakeout/bloodbath. Many many players will die on the wall.