Yes, this is what I've noticed too. Students here got study permits within 2 weeks. But hardly any April TRV applicant has received a PPR. (Applied from KSA in April 2022)
14th April 2022 - Application
18th April 2022 - Biometrics
Applied from KSA
Sent a webform, but received a generic reply after a month
No other update. Still waiting...
No, I am still waiting. But two students I know received their study permits within 2 weeks of applying (they applied from Khobar). So clearly, IRCC is prioritizing study permits rather than TRVs.