Nested collection to single reference field

I have a collection with “Listings”, another with “Orgs” (=Companies)
Listings has a single reference field to look into Orgs, where I have company details, logo, etc.
Each listing is associated to a single Org, hence the single reference field.

I’m building a job board, where each card has all the Listing details, but want to pull ORG details from the ORG collection.
When nesting the ORG collection inside the Listing collection list, I cannot access ORG collection data…it’s not offered… only multi-reference fields are offered.
I got around adding a multireference field to the Listings list… however, I want to understand if I’m missing something and this redundant solution I found might not be necessary.
Thanks in advance

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