There are some that are pro-unification in Taiwan, but it's a minority. Most people are pro status quo, and the number that are for declaring independence is growing. The ruling party is very pro-independence (ideologically speaking, in practice they have to move slowly and maintain status quo to some degree), meaning releasing their claim over mainland China, changing name from "Republic of China" or "China" to Taiwan, seeking UN membership etc.
The other big difference is that Taiwan is quite capable of defending itself to some extent. China will win eventually, but not without devastating the island. This will affect everyone economically. China and the world. If TSMCs factories in Taiwan are destroyed, it'd have an enormous impact on world economy. The production of high-tech electronics would be stunted for years. Russia annexing crimea had absolutely no practical effect on the world.
The fact is that everyone, China included, is relatively happy with the status quo. The CCP has to make a scene now and then to appease the fragile ego of a large portion of the mainland chinese. But I really don't think they actually care that much about invading Taiwan.