I think that is a gross mis-characterization because I see a ton of "get it done now, make it right later" bullshit among DevOps-y start ups.
Again, I think there's a large talent pool available, but startups who think they'll be the next FAANG act too big for their britches and actively discriminate against older tech workers who are likely experts in several pieces of the tech stack.
I routinely see these folks get passed over for younger, less experienced candidates (often for 1/2 to 3/4 the salary) who look good on paper because they wax eloquent about their pet project on GitHub, facial hair wax and kombucha.
Source: I make damn good money as a "fixer", and my primary customers are 5-30 person startups. I don't "code", and never will (useful scripts, and some automation/cloud API excepted).
I go in and practically beat the managers over the heads with the DevOps Handbook, and "engineers" with the NASA Systems Engineering Handbook. Most of my work is tearing out fucked k8s installs, and cutting AWS spending by 1/2 or more. (A few clients were billed based on how much I reduced their bill).
Have a standing job offer with one client, however it requires Azure certification pretty much immediately. Between not really using much MS stuff, and the exam focusing mostly on the Azure CLI, it might not be worth the trouble for a steady paycheck. They were nice enough to cover a training course though, so I'm willing to see where it goes.