Hybrid would make sense for a small vertical take off and landing experimental aircraft. Have enough battery on board for 15 minutes of power for eight 40kW electric motors that can be tilted to provide vertical lift. Have a Rotax doing nothing but powering a generator. Cruise at the Rotax engine’s constant power rating with 90% of the power going to forward flight and 10% recharging batteries so you are ready for the next vertical take off after landing.
If only I were not too cheap to play the lottery, I would build one with my winnings…