And from the summer all sites must have robust age verification systems to prevent children accessing a range of content.
Being "safe for kids" is no longer an exemption and it was never just for "adult content".
ETA: First known casualty of the new law, browser based MMO Urban Dead closed on the 14th citing the Online Safety Act's requirements for moderation unviable and unworkable.
So they're going full China mode. Businesses won't have a way to do this, definitely not smaller businesses or people even unaware of the law. They're basically going to be cut off from the world.
I think that is the intent. A plea to spare smaller firms from the act went on deaf ears and while I can't verify it, several websites have already closed.