quibble
KWIB-ulverbMeaning to argue or complain about small, unimportant points
Memory hook QUIBBLE over a NIBBLE. Pip and Lila argue for an hour over who gets the last tiny nibble of cookie; to argue over something that small is to quibble.
Let’s not quibble over a nickel; just split the bill.
In context Instead of fixing the big flaws in the plan, the committee spent an hour quibbling over whether the posters should be blue or teal.
Similar nitpick, bicker, split hairs, cavil
Opposite agree, let it go