Exposed supply and drain piping along interior walls

Is there any issue with running copper supply piping and pvc drain piping along an interior wall so it is exposed? This was in the kitchen and supply pipes ran from kitchen sink area to clothes washing machine on the other side of the kitchen. The drain pipe returned the waste water from the washer to the drain pipes by the sink. I can’t find anything that says this is a problem, but it’s the first time I’m seeing a setup like this.

It is what it is. Not pretty but I don’t see anything wrong.

if it can freeze during a power outage
all needs to be insulated
& proximity to heater may be a slight issue for cold supply if desired during heating months

Unless it’s a requirement in Texas, that is untrue.

Yeah, that’s what I figured. Thanks. I won’t address it in my report.