Hi - If i have company > projects > invoices realtionship in my table and an automation triggers on a company update, what is the best way to find the invoices for that company?

I am trying to avoid lookups + helper columns and use scripting instead, currently im doing (in psuedo code):

Current company ID (from previous step)

Find that record in the company table

Get contents of the “Projects Field”

For each product.id get the contends of the “Invoices” field"

For each invoice.id find the record and get the data I need.

I suppose my question really is this - when using linkedin field data is there a quick way to get the record that is linked to or do I just need to get the ID and then find the record in that table like I am already doing?