In Brazil we have a long history of Ethanol production, most cars run on both gas and ethanol or any combination of the two, our “rubbing” alcohol and hand sanitizer gel are all made with ethanol. I haven’t even heard of isopropyl until about 15 years ago. Have been washing motherboards with supermarket 70% ethanol my whole life. The only caveat is waiting at least 24h in hot days and 48h in cloudy days for open air drying (leaning against the wall in a corner somewhere).