Interesting that they’ve gone fuel-cell to solve the power/weight issue. The major issue with motorcycles (ICE and electric) is aero drag, which nominally goes up with the square of speed, but motorcycles are actually worse than that, given all the nooks and crannies that can cause additional interaction with the air. I’m a little surprised that there aren’t electric motorcycles with full 'bathtub' style (covers the front wheel as well) fairings. Bright side: air through a cooling system (radiator or engine fins) also introduces aero drag - and electric bikes can dispense with that.

Single rear swingarms are old-hat these days, but front ones are not. I've ridden motorcycles with a front swingarm. They work great at high speed, but, as the front wheel needs to be able to pivot, there's a limit to how far the front wheel can be turned - so an issue at low speeds. Motorcycles transition from front wheel steer (directional friction) to rear wheel steer (camber thrust) at around 10-15MPH. At that point, the front wheel simply helps throw the bike from one side to the other, using those directional friction forces to lever the bike over (countersteering). Sounds scary, but is very natural once you learn how. Also: a single swingarm in the front means a single side for whichever braking system to feed braking torque into. do it on the left side, and that torque counters braking ‘dive’. On the track, you really want two discs up front both so as to avoid twisting force and for greater area to dump heat. With a single disc, a ventilated disc (like with performance cars, not with holes that reduce swept area) might be a solution… No idea if this bike is intended to be track-able, but fast-fillable hydrogen suggests it is.

FWIW, aaages ago I used to set up race bike suspensions. Loved that job.