This comes up a lot and the reason doctors and lawyers don’t have to do their version of FizzBuzz is that they have strong, organized professional organizations managing their professions and providing a credential that assures some base-level skill. If we had the equivalent of the Bar Exam, we’d only have to take it once and then skip 75% of every interview.
Jokes aside, any software engineer would be wise to get one or two cloud certs. Certifications are big in the IT realm (e.g. A+), and while they've historically been a joke in the SWE realm, virtually all SWE job postings I see these days want the candidate to have AWS or Azure experience, and a cert proves that. Yeah the AWS Cloud Practitioner cert is easy, but something like Azure's AZ-204 takes MANY hours of studying/real-world experience to earn.
Well, I have a PhD, a pretty large github protofolio, a long list of realizations, code running on most tech devices on this planet (and also at least one device in space, as I've learnt recently), and I'm still asked to complete exercises that are only one step above FizzBuzz.
So... what you write may be true, but it seems to me that many employers are not ready to accept proofs of "base-level skill".
The problem has always been with companies. They'll pass on people like me, then whine about a tech labor shortage and want H1-B workers. I'm convinced I can do anything an H1-B visa-holder can*, but Google would have to be in dire straits before they even spend time interviewing me. Twitter is about there, I think, but it sounds like such an awful place to work now, so it's a catch 22.
*except be willing to work 50 or 60-hour weeks for 20% below market rate