I don't have high hopes either. It takes a combination of hardware and software to produce a really good trackpad implementation. Apple has the advantage of total control over the hardware and years of research on the software. They bought FingerWorks (https://en.wikipedia.org/wiki/FingerWorks) in order to improve their touchscreen and trackpad products. Wayne Westerman spent years on the problem before getting acquired. I'd imagine many more person years of research has been invested at Apple.

That's not to say we can't do better and it's not worth making an effort. However, thinking Linux can match Apple in terms of trackpads is wishful thinking, IMHO.