Wikipedia is full of disinformation on topics regarding politics and history. It is a good source of knowledge about mathematics, astronomy, biology, physics etc, but if you want an unbiased opinion on any political/historical issue you have to avoid Wikipedia. It is packed with disinformation not only about China/Taiwan, but about any country whose government and/or population is not a faithful believer in the dogma that the western orwellian police states are democracies and the USA is the most democratic democracy that ever existed in the galaxy.
Yes, I am sure that the 1989 Tiananmen Square massacre article [1] is full of misinformation according to China, seeing that they actively pursue people who speak up about it where they have jurisdiction and those people are "disappeared" or worse.
I'm not saying that there is no bias in the wikipedia articles, it's bound to exist seeing it's being written on by humans and bias is inherent to humans. However, the bias on peer-reviewed articles is much diminished compared to a unique party bias regarding issues they want swept under the rug.