Enhanced amounts of CO2 can result in increased plant growth and value yields. This is fairly well known for many horticulturalists and farmers using greenhouses for farming. While this does represent carbon utilization, the total amount of produce from such greenhouses is such a small proportion of the total crop produced that the enhanced CO2 intake does not have much of an impact on overall CO2 concentration in the atmosphere..
But rice is different - it is the third largest food crop produced in the world - after sugarcane and corn/maize. About 750 million tons of rice are produced every year.
So when one reads that researchers have created rice that can capture more CO2 and give 30% higher yield, one starts looking at life on earth with a bit more optimism. Read more on this from here - https://www.foodingredientsfirst.com/news/researchers-create-rice-that-captures-more-co2-with-30-percent-more-yield.html