For new e-bike riders, take a look at these videos: ... 2OkaI9-UHt (Playlist)

(Taking an e-bike out of its box)

(Some items that come with e-bikes)

(How to install handlebars)

(How to install pedals)

(Adjusting your saddle - seat height)

(E-bike usage - Basic Tips)

These videos will explain proper installation of Handlebars & Pedals, as well as adjusting your saddle height.
Regarding the brand, this is something that most e-bikes will share in common when taking a bike out of the box.