I would say it would depend on what the certification is. I could see things like being able to produce front ends/UIs that are ADA compliant both "in general" and with specific frameworks/tools/platforms. I can see the use of security awareness every-few-years training just to keep up with the latest greatest. I could see certifications related to doing 3rd party integrations via specific APIs whether it is payment processing, a LTI to extend a learning management system, MS Graph API stuff (heck just the various authentication options alone much less doing something once you've authenticated), any other authentication service or big api provider (governments, payment services, aws stuff, etc)
The problem is "who is certifying these people as being aware/semi skilled/capable/experts in these fields/technologies/whatevers, and what gives them the right to bestow that status on someone" and "do the people that have these certifications have actual real world skills to use them" (but that is what side projects, F/OSS work, portfolio work as you did the courses, etc is all for)