From a more informative article[1] linked from TFA:
"The expiration of the enhanced [premium] tax credits is expected to cause ACA enrollees’ out-of-pocket premium payments to increase by over 75% on average, with people in some states seeing their payments more than double on average."
"The enhanced premium tax credits were originally passed by Congress in the American Rescue Plan Act (ARPA) and extended under the Inflation Reduction Act (IRA), but they are set to expire at the end of 2025."
[1] https://www.kff.org/policy-watch/how-will-the-2025-budget-re...