Recently I burned out my rpi4, just at the moment my highly complicated radio transceiver reached some point of functionality.
Ordered a pi5, to discover its not working. After reading and reading this issues tracker give the fairly simple solution.

Just add 571 to the gpio pin number. Proposing something like this to make it fully compatible:

let file = fs.readFileSync("/proc/cpuinfo", "utf8");
let arr = file.split(/\r?\n/);
arr.forEach((line, idx)=> {
    if(line.includes("Pi 5")){
        console.log(line);
        gpio += 571;
        }
});

Imre