Chinese Space Official Seems Unimpressed With NASA's Lunar Gateway (arstechnica.com)
schwit1 shares a report from Behind The Black: At a science workshop in Europe this week, Chinese space officials made it clear that they found the concept of NASA Lunar Orbiting Platform-Gateway (LOP-G) to be unimpressive and uninteresting. Moreover, they said that while it appears we will be delaying our landings on the Moon for at least a decade because of LOP-G, they will be focused on getting and building a research station on the surface, right off the bat.
[From a report via Ars Technica:] "Overall, [Pei Zhaoyu, who is deputy director of the Lunar Exploration and Space Program Center of the China National Space Administration], does not appear to be a fan of NASA's plan to build a deep space gateway, formally known as the Lunar Orbital Platform-Gateway, at a near-rectilinear halo orbit. Whereas NASA will focus its activities on this gateway away from the Moon, Pei said China will focus on a 'lunar scientific research station.' Another slide from Pei offered some thoughts on the gateway concept, which NASA intends to build out during the 2020s, delaying a human landing on the Moon until the end of the decade at the earliest. Pei does not appear to be certain about the scientific objectives of such a station, and the deputy director concludes that, from a cost-benefit standpoint, the gateway would have 'lost cost-effectiveness.'"
[From a report via Ars Technica:] "Overall, [Pei Zhaoyu, who is deputy director of the Lunar Exploration and Space Program Center of the China National Space Administration], does not appear to be a fan of NASA's plan to build a deep space gateway, formally known as the Lunar Orbital Platform-Gateway, at a near-rectilinear halo orbit. Whereas NASA will focus its activities on this gateway away from the Moon, Pei said China will focus on a 'lunar scientific research station.' Another slide from Pei offered some thoughts on the gateway concept, which NASA intends to build out during the 2020s, delaying a human landing on the Moon until the end of the decade at the earliest. Pei does not appear to be certain about the scientific objectives of such a station, and the deputy director concludes that, from a cost-benefit standpoint, the gateway would have 'lost cost-effectiveness.'"
Actually, their longest so far is 33 days, during the Shenzhou 11 mission in 2916.
The mission you link to, Shenzhou 5, was their first crewed mission - they have orbited two space station since then, with multiple crewed missions.