99% of Colorado voters voted by mail with record turnout. There is no voter id when you vote by mail, only when you register. Moreover, Colorado accepts significantly more forms of ID for registration than does Georgia.
Colorado had just shy of 87% voter turnout. Without getting into specifics that points to a state which is pretty easy to vote in (mail in ballots, easy access to ballot boxes, same day registation, etc.)
By contrast Georgia has historic minority voter turnout and voted in 2 democratic senators and voted for the democratic presidential candidate. In response the republican state government passed a law restricting voting under the claims of voter fraud despite there being no evidence showing such fraud.
Colorado voters can use a wide range of identifying documents, from standard photo ID to a bank or utility statement. If you have no ID or any of the other documents, Coloradans able to cast a provisional ballot, and counties must attempt to verify those individuals’ identities.
"So, while it's true that Colorado has fewer days for in-person voting, it also has far less demand for in-person voting. Voters rarely encounter lines here. And the ultimate result of Colorado's system is relatively high turnout."
Ok.