OP, don't make this mistake. If you absolutely crave procedures than do cards, sports medicine, GI, or a pulm/cc fellowship..those 3 years will be SO much better rewarded than going into EM.
I would like to be a more versatile doc - peds, ortho, OB, performing lifesaving procedures, working up undifferentiated patients, etc.
OK, let's go through this from the EM point of view...
Seeing kids in the ED: will lose it's luster super fast (especially the 1 - 5yo group). While seeing a cute baby who bonked his head w/o red flags is admittedly a nice break from the rest of the ED...most other kid visits are meh. Non-toxic 2 year old with a fever? Yeah they'll be fine, but enjoy having the child scream in your ear and cough all over you during an exam...and then fighting with the parents about why little Billy doesn't need antibiotics . And if you get a truly sick or coding kid...it's the worst.
Seeing ortho stuff in the ED: OK, reductions are fun, but that's a small minority of the msk/ortho stuff you'll see. And having to corral orthopods into actually seeing a patient when needed is like pulling teeth.
Seeing OB/Gyn in the ED: Majority of OB you'll do is essentially r/o ectopic / dx miscarriage and delivering bad news...I've had to tell 100s of women they're miscarrying...sound fun to you? Only rarely will you actually get an eclamptic, precipitous delivery etc. The GYN stuff is almost always primary-care level stuff (that you as an internest can currently do in clinic), exceptions being eval for torsion / TOA.
Performing lifesaving procedures: Sure, we do this. But what's remarkable is how quickly you'll come to think you don't. For example the last 100+ patients I've tubed arguably all had a "life-saving" intubation...but it it doesn't really feel that way to me anymore. It's now just part of the job. But I'll grant you that the occasional pericardiocentesis, cric, transvensous pacer, etc is extremely gratifying...but depending on where you work + luck of the draw this will be a very very rare event for you (ie maybe every 6 mos to a few years, or never).
Working up undifferentiated patients: While being able to come up with a honed differential of possible emergent conditions (really the only conditions we care about) in the undifferentiated patient is a valuable skill...this type of thinking becomes ingrained in you after awhile and can color your thinking outside of work. Ie part-way through the pandemic my mom told me she'd lost her appitite due to "stress" and lost 15 lbs in 8 months. Is it pancreatic cancer? No. But that's where my EM brain took me for a week. Anyway, you can already work up undifferential pts in the clinic if you decide to do outpt IM. And as a hospitalist I'm sure you get patients all the time you think are still largely undifferentiated and get to go down some rabbit holes.
Do all these components of "versatility" still sound good to you? Look, the medicine of EM can be spectacular...but the general day-to-day becomes just that. And given the downfall of the EM market, there's no way any of us could in good consious recommend you "go for it."