>if anyone is keeping Lambdas warm at more than n=1 capacity
There are various ways to do it, but I feel that it's a very suboptimal solution, and it still won't guarentee no cold starts happen.
I've personally come to the conclusion, that lambda is very nice for anything non-latency sensitive. We are still using it to great effect for e.g. processing incoming IoT data samples, which can vary quite a lot, but only happens in the backend, and nobody will care if it's 1-2 seconds delayed.