Yeah microsoft is unlikely to pull the rug out from under windows users in one go, their strategy is much more likely to be pushing people in the direction they want to move computing slowly and incrementally over a number of years. They appear to want everyone who plays games, does office work, runs a business, or writes code to have a microsoft account, which they can then monetize in various ways using cloud services because that will be the main way they will deliver what people need.
I feel like we are in the middle period of this strategy.
I used zsh for ages but switched to fish a few months ago because its navigation features are amazingly smooth and seamless. I generally write scripts in sh or python so navigation is the most important part of the terminal for me. Fish has bash compatibility plugins if you need them, but the main reason I use it is that it's the nicest feeling shell to use for getting around in a terminal that I've found so far.
That counts for a lot.