You probably know this already, but know the osteomyelitis workup by heart--it's the same for everyone, and you'll do it a ton as a PGY-1. Everyone gets vancomycin and zosyn, everyone gets xr, esr/crp, procalcitonin if you want to brown nose. Your pt may not need MRI but your attending may not know they don't need MRI so ask your seniors what to do. Pay attention to GLP-1 agonists, anticoagulants, and dialysis days, these are the things that result in surgery delays and therefore you getting yelled at.
For elective cases, you study 1-3 days ahead of schedule. Probably a pgy2 doing these and you start out watching.
For IM, forget it. I was never more furious with my podiatry school than on my IM rotation. I paid them $$$$$ and they taught me jack nothing about medicine. You can't make up for that with self study either. I felt like such a clown on that rotation.