Recovering addict here, couple decades clean: yes, that's been true for years. If you are in touch with the using-addict population, for instance you're in recovery and participate in meetings, you'd be certain of this.
It's weird when maybe a double-digit percentage of the people you know, wind up dead (and this is before covid). When you include people you know, upset because people THEY know have overdosed and died, then yeah: the effects of fentanyl are pretty damn apparent. People will not be addicts cautiously. Even if they think that's what they're being, they're mistaken.