How can I view cloudwatch logs via the query insights?

Hi, sorry to hear that you're having an issue with your log queries. If you can, I'd like to suggest that you please reach out to support as they will help you figure out what the issue is.

Regarding your question of viewing logs without a query, you can view logs without a query simply by navigating to the log groups menu entry, clicking on a log group name then clicking on a log stream name, then you can use filters at the top of the page to get to the logs you are looking for.