If you are in unchartered waters, it is sensible to use a compass. Or in unknown terrain, a GPS
Well, if you are just starting out, the certifications are your GPS to to upskill yourself. Think of certifications as a systematic plan to develop your skills. So, in a way, I would say, yes! they are worth my dime
If you already have a ton of experience working in Azure, then probably not! I have not seen anyone getting hired solely because they have done certifications. You do not require a GPS to navigate your city
Although certifications themselves will not lead to a job, but at least a talking point with a recruiter