There is also "Institute of Military Medicine Nanjing Command" that submitted an identical envelope protein 2 years ago [1]. They adapt quickly to avoid detection of the immune system [2].
People argue it would have evolved and not be the same if it didn't came fresh from a lab.
This seems to be a pattern in echo-chamber sites such as hn or reddit. If there is no reliable information, the most outrageous speculation makes it to the top.
[1] https://www.ncbi.nlm.nih.gov/protein/AVP78033.1 (Click "Identical Proteins")
[2] https://en.wikipedia.org/wiki/Viral_envelope