Is Cosmos future of blockchain?

Hello everyone. Hope you are doing well.
I am blockchain developer with rich experience in DApp development on general-purpose-blockchains.
But I am new to application-specific-blockchains like Cosmos.
I did some research on it but not sure if Cosmos is really useful.

• What is the advantage of Cosmos? Why do we use it?
• Is it really useful as it is written in docs?
• Does it have a future? Should I learn it?
• Where can I get a job or something like that related to Cosmos?

I need help.
Thanks