I have encountered very few graffiti here in Peking. Which is not strange at all, given I really move veeeeery little, and even much less during the three last pandemic years. And, in the few areas I visit, they seem to be a rarity anyway. I only recall having seen (from the bus) massive amounts of what I call “big letter” graffiti (those apart from tagging) on the structural parts below and besides the motorways leading to the Capital Airport.
This is the last or one of the last examples of tagging I have seen. It was on 14th of January of 2023 somewhere in Dongcheng district, when I visited an administrative office for some bureaucratic formalities.
As almost always, it is for me impossible to imagine wether it was made by a Chinese or a foreigner.