I don't think the 'cold-start' issue should be taken lightly. Yes, some services won't care at all, and you can mitigate it as you say by choosing a particular

I don't think the 'cold-start' issue should be taken lightly. Yes, some services won't care at all, and you can mitigate it as you say by choosing a particular backend. Yet it is still a big concern for Java for example when you can not use graalvm etc.