I've posted earlier about STRUCTS in BigQuery, here's how I use it from time to time to help me debug and analyze data a bit faster.
Since changing filter values for different test cases / observations you are interested about can be a headache (especially if you have a lot of columns), you could put them in a tuple of STRUCTS and check the matching records at once.
Not a game changer but makes life a bit easier 😁
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