> I strongly recommend never using functions as a service unless you genuinely have some client edge compute requirement that absolutely cannot be solved via some other means.

Why? What’s the downside? Are you taking the benefits into account in your calculus? This sort of general, input-free recommendation is junior level thinking at best.

> I am fairly confident I could support more capacity with a single t3a.nano instance.

It depends on what resources those connections are using (memory, CPU, I/O, network). What actual work is being done?