This is what I'm using from MacOS M1 with the Silicon Labs Driver Installed and it seems to work OK

I'm using iTerm2

# As root
# screen /dev/cu.usbserial-10 115200,-ixon

# Use CTRL A then CTRL \ and enter y to exit the screen session

Re the driver install downloaded from https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers

Ran the install program, the install program hung at about 3/4 progress. I ended up restarting my MacBook and it seems to have installed and loaded. Even though it stalls it works after a reboot

To plug the USB-A console cable into my Mac I'm using a Comsol USB-A female to USB-C male dongle.