It will almost certainly return to the high court eventually, especially if the government keeps up its efforts (and they will) to suppress constitutionally protected speech that they want to characterize as "misinformation" or "disinformation."
So social media websites will continue to claim they have zero responsibility for what is published on their websites.
Don't worry that is not what the surgeon general and Congress are concerned about. But they are concerned about young people and the damage that Unsocial media is doing to them.
The 1st amendment is not sacrosanct and as the 4th estate will remind you there are limits.