Sometime ago I reached a similar sentiment to yours, but if you think about it, companies are just teams of people as well, they do not exist as separate independent beings in this world, so it is natural that there is more priority in covering the needs of “teams of people” instead of the individual home users (which mostly don’t go past MS windows anyway).
Bear in mind that the linux world is mostly dominant in server space, the fact that we have desktop environments and even gaming support now comes as a lucky subproduct (of companies investing in many cases).
Also, maybe we should not try to focus as much on the fact that everything in this life has an expiration date, but on the hope that when it does expire, we have better options to choose from. As the original creators of a project change, get old and their priorities shift, so does the project itself, which is alive and transforming into whatever the current people invested in it make it be. The forgotten dreams of Richard Stallman from 40 years ago might not be greater anymore than the rush towards a terminator-like future governed by AI that we all seem to be rushing towards to at the moment. Who would have thought and who knows what OS or even device we will be running in 10 years.
Just live life and enjoy the dance of change.
Cheers.