But only for new collections. And those can optionally choose to support the Open Creator Protocol, which supports this feature. But they may not choose to.
Open Creator Protocol is a new protocol that allows you to optionally add to each new collection the ability to have royalty on its NFTs.
The full Twitter thread is here. A detailed post from Magic Eden marketplace here.
As for existing collocations, they can optionally take advantage of the burn-in and remint feature.