[cyp0633]

Pinduoduo has done numerous bad things before to Chinese users, including popping up ad in the background and pretending to be another app (e.g. WeChat Pay or some battery saver). However, Chinese Android app stores (you know, we don't have Google Play here) are somewhat sponsored by Pinduoduo and they did nothing to that malware. For people outside China Mainland, personally my advice would be to stop using Temu altogether.