IMO, management interfaces like iDRAC are very nice extra to have when using enterprise servers for homelab.

The base iDRAC allows you to control power state, monitor & configure hardware, and view hardware system event log. The remote console and media features cost extra as part of the Enterprise iDRAC. Remote console lets you access server just like if you were physically in front of it. Remote media lets you mount images over the network to the server and boot from bootable ones too.

It has in band and out of band connectivity methods but I only have experience with out of band.