Skip all that jazz and write some php like it's 1998 and pay 5 bucks a month for Hostens or the equivalent... Well, that's the opposite costing side of the spectrum from serverless containerized dynamic lang runtime and a zillion paid services as a backend.

Your standard web hosting services, or a cheap VPS are great options.

The whole 'cloud serverless buzzword-here' thing is ridiculous for most use cases.

Heck you can serve quite a few static req/s on a $2 ESP32 microcontroller.