Recently read unleaded aviation fuel seems to be an insurmountable problem for the FAA. Will it be that hard with electric aircraft or is it further along?
The issue with unleaded fuel is that the goal is to make it a drop-in replacement on all engines that currently use AVGAS100LL, which is the only remaining leaded fuel in large use (a lot of small planes can actually fly on unleaded aviation fuels and there are some available, it's just 100LL is "default" fuel when thinking of piston engines). So they have to certify that if you swap the fuel, preferably without any modifications, then it's safe to fly.
Battery powered aircraft go through normal certification process for a new design.