Any startup is a risk. You build something, you put yourself and it out there and things will or will not happen. In business there is always competition. In modern tech startups this is something to account for - a giant filling a gap in their own OS and its ecosystem. Some startups will find a way to pivot, others won't. Tech is one of the riskiest businesses to get into. If this wasn't already clear to tech founders, I hope it will become now.