I missed the tail -f of old days. aws logs tail command is the closest solution.
It has two limitations: 1. It can't format timestamp to your local time. 2. it can't filter by arbitrary string inside the log stream names (it only filter prefix)
I just created one and now I am happily using it in my cloudshell. I wish I am not totally reinvented the wheel, but I couldn't find an quick solution.
https://github.com/xychenmsn/awstool
It is basically just a shell script file and the basic usage is:
tail_aws_logs -g <log_group_name> -s <stream_pattern> -h <history_minutes> -t <timezone> -p <poll_interval_seconds>
Please give some feedback.