I managed to secure a free transit hotel for my overnight transfer at PVG from FUK to SIN through the China Eastern Application, but it's in Chinese. The hotel, called "华东航空酒店," is equivalent to a two-star establishment and is located 10km from the airport. According to information from FlyerT, a Chinese aviation forum, this hotel had issues with cockroaches in the past. Moreover, if you're traveling alone, you're either required to share a room with a stranger or pay half the fee. Given all these drawbacks, I chose to stay at the PVG Holiday Inn Express instead. It's closer to the airport, just 3km away, and it cost me 10K IHG points.

If you need assistance with booking the free hotel, simply reply or DM me, and I can provide a step-by-step guide