A lot of laws don't need updating.

Courts don't allow you to submit false evidence yet somehow they need to update their produces to handle AI generated false submissions?

The issue is enforcement. Plain and simple. The anti-trust on the books are fine; no more amount of written laws will make regulators regulate.

Lina Khan did try and regulate. She had some successes, but the major cases w/r/t concentration of power against Microsoft, Amazon, Google, Meta and Apple have all moved slowly and (so far) failed to result in break ups.