I've heard from friends who are into electrical vehicles that electrical motorcycles aren't a good option economically, because the gas savings are offset by the cost of battery wear and battery replacement.
A gas powered motorbike in comparison will run for decades without having to do any expensive engine maintenance.
Yes the burden of the fuel price is much less on a vehicle that sip less than 3L/km
It's the opposite IME, most petrol two-wheelers are massive money sinks past 5 years of ownership. You will likely spend close to original price in maintenance and repairs, with most models developing "unfixable" issues that massively degrade the experience. It doesn't need to be engine related for the costs to add up.
Even if the battery craps out after 5 years (extremely unlikely), it's a wash. That's before considering the fuel savings. Battery degradation is a bit of a meme, we aren't even 10 years into mass adoption of EVs for this to be a common experience.