They didn't even start supporting it until the past couple years, so of course it's going to be worse. They're years behind on institutional know-how and infra
Toyota has massive scale, is very successful, and is japanese, and thus has extreme inertia on change, even in software where such things 'should' be faster. Their existing infotainment has been considered fine and functional for years, and Toyota likely didn't start seriously considering it till consumers were already demanding it.