Your initial claim remains false.
As indicated, digital game storefronts offered refunds explicitly prior to Steam, and it wasn’t leading the way, especially given its policy was that all purchases were not refundable, up till 2015’s changes.
Leading the way isn’t making some exceptions to their policies occasionally, it’s making refunds a part of the policies from the outset when others aren’t.
@ItalianSkeletonGaming @games not sure how well alt text federates, so for those wondering the games in the image are Jump4 (top) and ParaPerspective (bottom)
Haven’t gotten around to trying any demos yet personally, but ParaPerspective looks like my kinda game as someone that enjoyed Echochrome