The China National Space Administration (CNSA) Watcher site posted the above before and after selfies taken by the Zhurong Mars Rover. The top shot was taken on May 19, 2021 and the bottom shot on January 22, 2022. You can see the dust that has accumulated in less than a year on the rover’s panels. The site notes that the rover has the ability to vibrate and loosen the accumulated dust.
China launched Tianwen-1, which carried the rover, on July 23, 2020. It went into orbit around Mars in February 2021, with the Zhurong Rover landing on the Martian surface on May 14, 2021. China sent the rover to the Red Planet to find evidence of water. If all goes well, China hopes to bring a Martian samples back to Earth in a subsequent mission. The Planetary Society has some helpful information here on the Chinese mission.