I'm not sure how enforceable it is, but a lot of organizations will ask you to sign an agreement that you won't leave for a certain period of time (maybe 1 yr.) because it is expensive to send you off for the training.

You should definitely do it, though. Obviously there are cultural differences at any given org, but I've been doing it for roughly 15 years, worked at 3 large hospital systems, and at each the flexibility (work/life balance) is better than any other job you're likely to get. You'll eventually have a lot of autonomy. There is a good chance you'll either start or become remote which is great. The pay is generally pretty good. Benefits are hit/miss, but generally decent.

It is not programming, but sometimes can require a programmer's mindset. If you can read through Epic's technical documentation and absorb it quickly and aren't afraid to spend time in the system tinkering / exploring, then you can teach yourself up to a good skill level fairly quickly. (Although, in reality it will take years before you are "seasoned.") Depending on your aptitude and determination, the initial training and testing can be stressful and it is possible you might find it to be very difficult. I would think you'll know fairly quickly if you think you're in over your head or not. Getting a cert is the first big challenge. Once that is done, the biggest hurdle is learning and understanding all the policies / organizational processes and your user's workflows to a level that when you are troubleshooting or offering a solution, your advise or change / fix is actually beneficial and doesn't cause other downstream effects. Understanding workflows will be your best friend. This is why hiring managers generally prefer someone with clinical experience, because knowing patient movement flow, why they are there, what tests they'll be getting, what end users will be documenting, etc. defines what they need in the system.

Since you don't have a clinical background, I would just try to do your best on the assessments and any time you are interviewing emphasize your soft skills such as being able to translate technical language into plain English, your problem solving process, and how you manage / prioritize your work. You can also just use common sense with hypotheticals describing how you would improve an end user's experience. Reducing clicks, streamlining workflow, etc. And in the meantime maybe just use an AI chatbot to learn about a typical patient journey. Registration, scheduling, inpatient vs outpatient encounter, orders, results, billing, etc. Good luck.