I had an Accord hybrid and it did not have a transmission at all. There was a clutch and a single gear, which engaged over about 45 mph. Otherwise, the vehicle was propelled by an electric motor. The design, as far as I know, is significantly different than what Toyota uses. Having no transmission plus very little brake wear due to regen breaking felt like a good tradeoff.

https://www.autoweek.com/news/green-cars/a34667856/the-updat...

https://hondanews.com/en-US/honda-automobiles/releases/relea...