A few years back, I over heard our rendering lead discussing applicants with certifications from game developer schools, I’ll paraphrase what he said, originally posted here
“The ones who come from schools will have a certain set of skills, but you can just coast through most school. I’ll take the person who taught themselves to program graphics in their bedroom, just because they were curious. Because you know they have both the intelligence and the tenacity to figure stuff out.”
Almost any degree requirement is followed with “..or equivalent work experience” - in other words demonstrated skill is what matters.