I live in China, and the city I live in has copious wide bike lanes. There are many bicycles in them, but they are vastly outnumbered by ebikes.
When I first arrive here 2 1/2 years ago, I was faster than all ebikes, the top speed I was observing was about 34 kmph. This is not the case anymore. I am often overtaken when I am doing 36 kmph, and have drafted them doing 40 kmph. I expect this trend to continue.
There is an advantage to having the bike lanes full of them, they are not likely to remove the bike lanes, which would have happened if the remaining bicycles were the only ones using them. These ebikes help constitute critical mass.
z