This has been a question I've had too. How do you get to show you have experience in enterprise software/tech if you've not been given the chance to work in a setting that uses something like that before?
It's the chicken and egg problem. Companies are often more concerned with the candidate's experience in specific esoteric technologies for their sector, and will not hire anybody who doesn't fit that yet, instead of also hiring people who can definitely learn that tech pretty quickly based on their experience, or having shown they are experienced learners.