The US's demonstrated capabilities in algorithms + intelligence + decapitation against Venezuela are only applicable to specific types of opponents:

Highly personalized power, security systems closely tied to individuals, internal loyalty issues, and decision-making concentrated in a few nodes.

Venezuela is just one example.

Of course, for nuclear powers, such capabilities would not be used in this way, but they still serve as a verifiable deterrent tool.

Because the US military doesn't need to take real action, only to make the other side believe:

I know where you are, know when you're most vulnerable, and have the ability to strike.

This in itself will:

Change the opponent's behavior
Increase their security costs
Restrict their diplomatic/military actions

It could even serve as the last option before war with a nuclear power.