My work colleague and I, both US citizens, have valid 10-year visas in expired US passports (and we both have current US passports).
We've both been to China a number of times but not since 2019 and are thinking it may be time to return.
We're firm believers in face to face meetings to maintain relationships with existing customers and gain business with new customers.

We have an office in Shanghai whose people we travel with when we're in the country so we always have a local with us or nearby.
Time is spent mostly in Shanghai, Nantong, and Dalian areas but past visits have also included Gunagzhou, Qingdao, and others (as well as Hong Kong).

While it's not absolutely necessary for us to visit China this year we'll already be in other parts of Asia in October so that timing provides an opportunity.
We've done plenty of other post-pandemic travel, are vaccinated, and are fine with masking up - whether mandatory or when it just may be a good idea.

I've done some research and haven't found any major red flags (I'm aware of the current US State Department advisory).
Have I missed anything to suggest that a visit in October would be a major hassle or simply inadvisable?
Our colleagues in Shanghai feel it would be OK but I'm looking for perspective from others who have been there for business recently or have any advice to provide.