Although @YouTube says it will label government-funded videos, aside from obvious gov channels like CGTN, CCTV, funding behind influencer content could be hard to detect. For example this YouTube channel called YChina or Waiguoren 歪果仁:

YChina usually offers funny, apolitical videos featuring mandarin-speaking expats who contemplate latest trends & daily life inside China. Except this week it published 4 videos showing “devastations” of the HK protests. Channel founder Raz Gal-or took an “extensive” tour of hk

The video takes on an angry, personal tone and focuses on public facilities that’s been trashed and vox-pops of taxi driver and retail sales who say livelihoods are affected. Raz Gal-or who’s based in the Mainland after spending 5yrs in hk also said this:

Zero mention of an extradition treaty. Or police brutality. Lots of ruined objects in the airport and subway station.

In a 2017 interview, Raz says he’s Israeli, got seed funding from his VC father to create YChina, and won deals with WeChat Pay, JD, McDonalds, Jeep. It would seem that their model is to create sponsored video content. https://www.scmp.com/news/china/society/article/2121535/how-israeli-who-captured-chinese-hearts-plans-turn-online-fame

YChina also did a video about HK-Zhuhai-Macau bridge, says it “connects the hearts (feelings) between three cities.” But it’s pretty obviously an ad for a WeChat public account on cross-border transport services

somebody DM’d me this People’s Daily video featuring the same blonde girl in many of the YChina videos. Says she shook hands with Xi Dada. The video shows foreigners calling “Xidada cute like Winnie the Pooh”