Both provide first-hand perspective though, which is hard to gain unless practiced.

Advice about a homelab might be more more common since it's more practical. I'd also value the opportunities it presents for general experience. For example when running a homelab you're organizing and putting together systems, or maybe balancing resource management and budgeting to find the right hardware.

The specific details probably won't matter in the long run (except maybe during a certain flavor of trivia night). But I think having some knowledge about what came before helps build intuition about how new things are put together, which makes a lot of tech look less like magic and more personally achievable.