Running k3s cluster on bare metal hp servers

Hi guys hope you’re doin well
I am planning to setup a k3s cluster on 10 hp bare bare metal servers for a heavy duty web application and I have several questions:

1- is k3s production ready?
2- can I use it for bare metal server with debian OS installed on each server?
3- Is it a best practice to setup a cluster like this or I should stick with k8s?