From TFA:

>Currently, third-party web browsers, including ones like Chrome from Alphabet Inc.’s Google, are required to use WebKit, Apple’s Safari browsing engine. Under the plan to meet the new law, Apple is considering removing that mandate.

I was momentarily excited for this possibility but not in a million years is Apple going to relax their "no interpretter code" restraints.

Worth mentioning that the big MV3 change in WebExtensions is also banning interpetted code. Dynamic behavior is illegal in 2023, static code only, by corporate mandate.

Not sure how they go around Apple’s restrictions, but Orion can run both Chrome and Firefox extensions.

(Not affiliated, just use it; though not as the default)