I love looking at other people's setups, especially if they have done a clean-job on it.

Currently I have four small racks:

  Rack #1 & Rack #2 dual side-by-side (custom built)
  Rack #1
    NAS x1 4U
    NAS x2 4U
    Patch panel 1U
  Rack #2
    PDU 1U
    UPS 4U
    UDM Pro 2U
    24 Port switch 1U 
    Rackmount cable modem 1U

  Rack #3 (it's an arcade cabinet)
    Workstation 4U
    Rackmount Mac Minis (Intel & ARM) 2U
    UPS 4U

  Rack #4 (custom built)
    Supermicro 4U server (330TB) that doubles as the VR computer
    Supermicro 4U storage box (700TB)
    PDU 1U
    UPS 2U

I like tinkering, but I don't rely on my racks for anything other than compute and storage. Technically I have a partial rack in a data center that I have never physically seen, where I self-host all the usual services, but as I only rent that rack, I don't consider it "mine." Tinkering with a homelab is a useful IT skill to have, even if you don't work directly in an IT only area, but you shouldn't burden yourself with an overly complicated setup. Keep life simple (and organized).