Car fires aren't the a significant enough cause of car crash deaths to matter.
Maintenance seems to be a manufacturer problem more so than a hybrid vs others problem. Toyota Priuses have been the beater Taxi of America for a good decade now. These hybrids are troopers.
If Rivian and Tesla maintenance stories are any indication, Full-EVs seem to be an order of magnitude behind on dealing with problems during the ownership period.
Maintenance has nothing to do with EV vs gas. I have a 2011 Nissan Leaf. Maintenance is keeping the tires inflated and changing the wiper blades. 50k miles and still on its first set of brake pads.