The suspects are collectively comprised of Little Mi's POC OS, my home router (Huawei's), and my apartment-provided network connection. At first, the issue arose after I upgraded my phone system to POC OS, and I found that playing videos had a certain probability of freezing. I initially assumed the problem lay with the POC system and reported it to Xiaomi officials (who did not respond). Subsequently, I stumbled upon the phenomenon reappearing when using my home WIFI. However, streaming was not affected when connected to 4G networks or corporate WIFI. In subsequent investigations, I began to suspect my router. After further exploration, I noticed that utilizing the router's 5G signal would sporadically cause screen freezing, whereas 4G connections did not. Having reached this stage, I was left puzzled indeed: who was ultimately to blame? 😂 Please, esteemed experts, save me!