Historically a hybrid bike is one that had multiple uses ie could be used on road, or for light off-road, and typically had flat handlebars. It doesn’t automatically mean electric.
So you can get an electric road bike with drop handlebars, electric mountain bikes or an electric hybrid bike.
May be automotive terminology is bleeding across into the bike world, but if you go into a bike shop and ask for a hybrid bike, they will think you mean flat handlebars that can do light off-road stuff.
As an example, this is the bike my wife is looking at:
https://www.halfords.com/cycling/bik...-electric-bike
You can see it is labelled as both hybrid and electric.
This is a hybrid bike (non-electric):
https://www.halfords.com/cycling/bik...ns-hybrid-bike
Pete