Where people get misled on China’s rollout is total generation (since it’s a huge fraction of the worlds population) and the fact that they do large centralised rollouts rather than enabling rooftop solar. So they have some of the biggest solar farms. Rooftop solar is the way the countries that have shot past china have mostly achieved results - remove barriers to installation and grid connection and suddenly every citizen is invested in it since it saves them money. It’s the classic efficiency win from a massively motivated population vs a central bureaucracy. China’s showing everyone how NOT to enable solar.
When I lived in Beijing, the apartment buildings I lived in usually had solar hot water. Well, I could tell when they turned on the central heating plants for the winter because I finally had hot water showers again.