John Gruber has a long take-down on the DMA. There is plenty to think about in this, but a quick comment on his point about Chrome:
My guess is that, perhaps counterintuitively, the single biggest beneficiary of this mandatory browser choice screen will be Google Chrome, which I consider the single most dominant software monopoly in the world today.
This rings true. Google puts Chrome in your face everywhere. Perhaps one side effect of this is that Apple is going to need to do actual marketing for Safari.