In the past, the tech companies could count on the Republican impulse to protect Big Business to shield them from a lot of these type of investigations (for example, see how the Microsoft Antitrust DOJ investigations got a lot easier for Microsoft after George W. Bush became President).

Now, large numbers of Republicans view Big Tech as the enemy, and combined with Democrats historic suspicion of Big Business, this has resulted in a very volatile time with respect to government regulation and investigation.