Earlier quoted context omitted.
And if you need a dependency that has a sub dependency with a subdependency that uses a native module prepare for poorly defined -fun- hell getting it to work. A surprising amount of standard is libs do.
*standard js libs (as in commonly used)
Being able to throw up a new REST endpoint in under 10 minutes with 0 config is really cool though.
And Firebase Functions are priced to work as daily drivers, they can front an entire application and not cost an insane amount of $, per single ms pricing. Lambda's are a lot more complicated.