In the software space, how much tangible benefit has antitrust actually provided to consumers? Microsoft's power was reduced more by market shifts, failure to

In the software space, how much tangible benefit has antitrust actually provided to consumers? Microsoft's power was reduced more by market shifts, failure to adapt, and unanticipated new tech than it was by monopoly sanctions. I do believe absolute free markets are not practical, as evidenced by the fact they mostly don't exist. However, the minimum force principle applies. For every government constraint on tech I thing it's fair to ask, is there no way the market can fix itself in 5 years? How many disruptive shifts will happen during that time? Maybe government could help more by starting first with stronger patent reform?