Is it possible to transmit QPSK modulation with STM32WL microcontrollers?

[CHunt.3]

I would like to implement UHF transmission with QPSK modulation using the STM32WL. The required data rate is slow, so direct control of modulation may be possible if the transceiver peripheral cannot achieve it natively. Has anyone managed this, or tried it, or have any suggestions on approaches to try?