You have absolute freedom in truly open source software at the point of any particular release.
So, you have the freedom to fork or self-build/host at discrete time points.
Assuming software made by a company to remain and persist truly open source (compatible)is idiotic.
Praise the freedoms you have had for this time.
The constant criticisms will likely mean that new companies or new products will never opt for open source in the future . And that is a poorer outcome for the world.