Best wishes for your new role.
Well, being a manager definitely increases your accountability. Which does mean more work or more checks done by you on your team's work.
You have observed well, communication is the key. But this means more listening too. Be aware of the non verbal communication too.
Try to identify the risks and take action proactively
There could be lots of advice, but first is enjoy your role and be kind to yourselves. You will make mistakes and learn from them and eventually some day would be commenting like me too :-)