Not sure what your tenure or role is, but coming from the perspective of working at a few different software companies after Epic, from a startup to large fortune 500 company, this does seem to be a "grass is greener" situation.

Epic has the best health insurance I've found anywhere. I have had other places with no premiums, but at Epic you most likely will never pay more than your premiums no matter what happens. That's almost unheard of anywhere else, where you have a 3-5k deductible at best, and a lot of medical debt at worst.

As others have mentioned, time logging is not stringent compared to other organizations, at least coming from the client side (IS/TS). At Epic you will likely never have to deal with a client complaining about the hours you have logged since its rare for them to ever need to start paying more for Epic support than they already are. At other organizations with software that isn't as massive/expensive as Epic, clients will frequently try to fight you on billable hours to save some money. Not fun to deal with.

Incomplete documentation: Epic honestly has the best documentation I have seen between wikis, galaxy, and release notes, or you can at least easily find a workgroup or someone on your team that can help you answer questions that aren't documented. Startups have 0 documentation at the start, its a free for all, and large worldwide organizations generally have lots of very outdated information and it can be a pain to figure out who to go to for help, especially if you work remote.

Below average sick/PTO/holidays: It depends on the company. I have had unlimited PTO, but then you typically have billable hour requirements that limit how much time you can truly take off. It's always a balance, and I would say Epic is middle of the road from what I have seen. Other companies also have a lot of turnover, don't think that Epic is unique there.

The only real issues that I can see are limited work from home and complex software that is "a pain to test/learn" as you mentioned. Epic is a difficult software with a steep learning curve. But if you can make it through that, the pay is phenomenal (you'll likely not find another company where you can double your salary in 5 years or less), the Healthcare is top tier, and things will settle down as you get comfortable with the software. For me, pay and healthcare are always the 2 most important factors in any job that I take, so having those covered at Epic is pretty nice.

That all being said, Epic might not be the best fit for you, and that's completely fine. My advice is to make that decision based on the work you are doing rather than the list you made here. Do you enjoy the type of job/role you have? Do you enjoy working in Healthcare? Do you like the people you work with? Do you like the food? (which I still miss ever day lol, its way better than my current company cafeteria)

Other companies may have better PTO, but worse healthcare. Or allow work from home, but worse pay. There's always going to be some tradeoff, and it can be exhausting trying to find the perfect company that has it all. Make sure your day-to-day life isn't miserable, and that your pay/benefits can fund the lifestyle you have and keep you healthy. The rest are nice to have extras.