Really depends on the company. For me it isn't true, but it used to be when i worked at a bank with terrible management. Nowadays i'm in a tooling team (for Network and security teams), where my "clients" are other devs from the same company. Of course we still have negotiation, but i'd say 60-80% of my time is spend coding, and that's with me being basically a "senior".

And by the way, one thing is missing from the OP graph: i now spend maybe 50% less time writing my own code, and 100% more time fixing my juniors PRs and fixing production issues after my reviews miss issues...