A good way to understasnd how support for Statehood has been fundamentally decoupled From the PNP, is to see the Statehood % vs the PNP Gov (Pierluisi) % in the 2020 Gubernatorial Election
From this we observe a few things - the first and foremost is that some of the Most Pro-Statehood Liberal Areas in the SJ & Caguas Metros and Ponce. In addition to the Pro-Statehood conservative, such as the Aguadilla, Arecibo Humacao and Río Grande areas have similar Statehood overvote when compared to the governorship.
This is lilekely due to the fact that these areas - unlike the rest of the island - are both more educated and more idiological as compared to the rest, thich showcase less to significantly less Statehood Overvote due to their attachments to the main traditional parties (PNP & PPD) and more specifically the PNP.
however, if Puerto Rican politics get fully decoupled from status, this statehood v PNP overvote is likely to keep continuing - as the PNP will lose its monopoly on statehood.