Definitely agreed for Devops. I have been searching for a new role and most the vendors prefer AWS over GCP/Azure. I think it's a 3:1 ratio in terms of roles available for AWS versus GCP/Azure combined.
I use that in my filtering process. Thing is, if you want to make the big money in DevOps, you need to know all the and when to chose them. It's not a winner takes all situation.
