I remember hearing about this over at ResetERA about a year ago, but the thread devolved into sinophobia and got locked before anyone could really look into the claims.
If this is true at all, Larian has kept it extremely well hidden. In this case, I wouldn't be concerned about the Tencent side of things as they're pretty much everywhere nowadays, it'd be more about Larian pretending to be an indie company for the goodwill if it turns out that they're having secret acquisitions.
The only source I could find in regards to all this stems from a couple Twitter threads. Seems rather dubious to be honest.
https://twitter.com/GamerTrader1/status/1431899588324175873Yea, about that thread, I just read the whole thing, and while a bunch of posters were accusing everyone of being sinophobia, no one said anything negative towards the Chinese people, they just expressed concerns towards Tencent being an arm of the Chinese government.
China isn't a democracy, so when powerful Chinese companies that have to operate in China start buying large chunks of non-Chinese companies, people are going to be a bit anxious. that's not sinophobia. This reminds me of the current "russiaphobia" that is going around.