It should at the very least help with Safari. What a dreadful existence that browser is when you can't get extensions into the store without paying the 99/yr fee, which has stopped a lot of potential ports from happening.
Most ports right now are quite gnarly, you have to jump through a multi step build process just to do what other browsers can handle in a single click or drag and drop. Other methods I've seen involve relying on something like tampermonkey to run the scripts on the sites you want. Alternatively, making safari users mad by making your extension cost on the app store.
So I have high hopes! Finally developers should be able to release things for safari without feeling so suffocated.
That won't happen. People will install Chrome, and that's the end of it. Well, not the end of Google, of course, which will now have even more opportinuties to grab your data and sell your privacy.
I'm not sure you're really following. If developers are already jumping through hoops to make their extensions available for safari users, the only way this "will not happen" is if apple makes barriers to entry even worse.
Safari will become irrelevant. Users, some through ignorance, others coerced by incompetent front-end teams ("Safari is the new IE") will switch to Chrome. It will be the end of Safari. There will only be a few extension developers left.
When that happens, please switch to Firefox. It has more extensions than you'll ever need, and it's better for the tech environment and your privacy.
I use Safari as a daily driver because it tends to have a low impact on my machine. Whether Apple has the stomach for competing with Google directly after these changes remains to be seen, Microsoft threw in the towel after all.
Most ports right now are quite gnarly, you have to jump through a multi step build process just to do what other browsers can handle in a single click or drag and drop. Other methods I've seen involve relying on something like tampermonkey to run the scripts on the sites you want. Alternatively, making safari users mad by making your extension cost on the app store.
So I have high hopes! Finally developers should be able to release things for safari without feeling so suffocated.