How to download Security Hub csv file containing 21+ records

Hello.
I think you can solve it by implementing the architecture described in the blog below or by writing a script using the AWS CLI. https://aws.amazon.com/jp/blogs/security/how-to-export-aws-security-hub-findings-to-csv-format/
Using the AWS CLI, you can use the following command to search for SecurityHub detection results whose first detection date is within 30 days and whose severity is CRITICAL or HIGH and ACTIVE, and to output them as CSV.

DATE=$(date --date="-30 days" +%Y-%m-%d);aws securityhub get-findings --filters '{"SeverityLabel":[{"Value": "CRITICAL","Comparison":"EQUALS"},{"Value":"HIGH","Comparison":"EQUALS"}],"RecordState": [{"Value": "ACTIVE","Comparison":"EQUALS"}]}' --query "Findings[?FirstObservedAt>=\`$DATE\`]" | jq -r '.[] | [.ProductName, .Region, .GeneratorId, .AwsAccountId, .Compliance.Status, .Severity.Label, .Resources[0].Region, .Resources[0].Id, .UpdatedAt, .Title, .Description] | @csv' > securityhub-findings.csv

Thanks for the additional info Riku. Nice blog