From this report
I’ll note that California is a bit unusual, having imposed energy efficiency standards on buildings decades ago (much of the US didn’t) and having actively taken steps to substitute solar, wind, and storage for fossil-fuel based electric generation
Yeah, this report is designed with a transportation agenda in mind, so the graph only shows a select set of emission sources to make the tailpipe emissions look as bad as possible. Add in all other sources of emissions and the graph doesn’t look quite as impressive for the point they’re trying to make.