The apps used in Taiwan and China are significantly different. In China, its anything owned by tencent, baidu, or alibaba.
The app market in Taiwan uses mostly English offerings (google, facebook, instagram) with a combination of Asianic/Non-china based apps including Line, which is similar to Whatsapp or Wechat.
Not you don't. For most of the Chinese entrepreneurs create startups inside China - their local market is big enough to not to have to worry about internationalization. The big three you named there, Tencent, Alibaba, Baidu, didn't worry about that at all for many years sine their establishments.
> In China, its anything owned by tencent, baidu, or alibaba.
There are certain truth to it, but there are exceptions too. I.E. Douyin/Tik Tok(social vlogging) and Pinduoduo (e-commerce) have been immensely popular and successful in recent years and weren't owned (or significantly owned) by the big three.
In my OP I said it would be work. It would be more of a challenge for Mainland Chinese applicants to launch their businesses while not being in the Mainland, but if that was their biggest problem then they're prepped for success!
Native Chinese here. I don't think this is the case. It's not even close to ideal to base in Taiwan given the political environment between the straits nowadays. The policies are very unfriendly. Recruitment and market delivery is even more complicated than between foreign countries actually.