Chatcontrol, the mass surveillance law, leads to the breaking of end-to-end encryption. Signal would have to follow this.
The Digital Markets Act, enforces the interoperability of major messengers with other messengers. Signal does not have to follow this because it is not a "Gatekeeper."
@Whooping_Seal Yes, using a password manager with family sharing and for the self hosted stuff writing a wiki on how to keep it up or export the important data is my way to go.