The simple answer is, yes, there are alternatives, and they work.
The thing is that this is a family of products that have proven performance. As a result, and because our regulations are done in a certain way, this molecule is being banned or this other molecule is being banned. However, we chemists are very clever at adding new branches to the molecules. That changes the name and then it's a whole new molecule. We need to ban the whole family of fluorine-based compounds for all those non-essential uses.
There are a few exceptions. If there were only exceptions, we wouldn't be in the position we are in now. Yes, alternatives exist.