I have an overconsumption of ~50uA when going into stop2 mode with the DMAT of LPUART set.
Because of the silicon bug (LPUART does not generate DMA requests after setting/clearing DMAT bit), I can't easily clear this flag (the workaround can lead to loss of rx data).
It's probably related to:
https://community.st.com/t5/stm32-mcus-products/hal-pwrex-entershutdownmode-not-working-due-usart-dmarequests-sw/m-p/51367
