USB full speed bandwidth can cater for more than the 'default' 115200 baud commonly used in serial monitors.
some serial monitors refuse to go above 115200 baud, but that is a different issue.
and i think stm32 uarts may be able to do about 1 Mbps baud as well, at those rates I'd guess there can be throughput issues, unless the sketch goes in a tight loop to send/receive the data or perhaps use dma.
edit:
oh and there is ST-LINK V3 Mini(e)
https://www.st.com/en/development-tools ... 3mini.html
https://www.st.com/en/development-tools ... minie.html
https://octopart.com/stlink-v3mods-stmi ... 35624?r=sp
https://octopart.com/stlink-v3minie-stm ... 02320?r=sp
USB 2.0 HIGH SPEED (480 Mbps) for $10+
and you get a STM32F723 on it
https://www.eevblog.com/forum/microcont ... iscovered/
why even bother with the clones
