The methodology has evolved dramatically in those 20 years, what we've seen from Snowden is almost certainly obsolete in the light of new surveillance tactics. Even as a pessimist myself, I'm still routinely shocked by the lengths that American tech has been bugged.
Salt Typhoon is really the icing on this cake; "lawful" intercept turned against the state that implemented it. There are more twists left in this story no matter how jaded you might feel.