Looks like the OP has you covered ! https://staysaasy.com/product/2023/03/12/pm-engineers-dont-h...
Also as commented, the OP makes too many implicit generalized assumptions about the org: that PM and developers report to a similar management chain (that's often not the case, depends on the org) or at least is aligned with compatible incentives. Their throwaway remark "if the engineering team is much less tenured than the PM" and the lack of inquiring about why that scenario might have arisen makes you wonder, too.