We use node.js and the cold start times are negligible. Java, C# and docker based lambdas have problems with cold start times but we do not suffer from them. We

We use node.js and the cold start times are negligible. Java, C# and docker based lambdas have problems with cold start times but we do not suffer from them. We also use JAMstack and our html pages are statically generated in advance with Cloudfront CDN in front. We use Lambda for the backend REST JSON APIs.