Need help with machine coding rounds at Uber

hi all, I am a SDE2 with 2.5 years of experience. I recently got a call from uber and gave an OA. I have my interviews scheduled. I’m confident about DSA but worried about machine coding & LLD as this the first time I’m giving these rounds.

I got a few doubts like can I give this round in python as Im most comfortable with python for dsa. Also any resources that has previous year questions or anything?

I would be grateful if you can drop a piece of advice please

Thank you for your time and patience