Alibaba Group Holding founder Jack Ma on Tuesday made a low-key visit to the Hangzhou campus of Ant Group that coincided with the Chinese fintech giant’s launch of LingGuang, a next-generation multimodal artificial intelligence assistant. Ma, who had relinquished his control of the fintech company and resigned from all corporate roles at Alibaba, was seen accompanied by Ant Group chairman Eric Jing Xiandong and CEO Cyril Han Xinyi during his tour of the campus. Ant Group is an affiliate of...