Fees are certain. Returns are not. Every basis point you pay comes out of your future balance without exception.
A 0.77 percentage-point difference sounds small. Over 30 years of 7% gross returns on a $10,000 contribution, it compounds to roughly 24% less terminal wealth.
The same math applies to ongoing contributions. Over a full investing lifetime, the difference between a 0.03% and an 0.80% fund is often six figures.
When comparing ETFs, expense ratio matters more than tracking error for most index funds. Pick the cheapest version of whatever exposure you actually want.