Put a little matching filler in and forget about it please.

The question is is that industry standard? what does it norm look like?

Where is this on the cabinet? Maybe pictures from further back?

on side of the drawers theres marks of nail gun used to connect the drawers.

What sides? Front & back or side/ side?

If on the front & back sides, the drawer front will cover the nails and you'll never see the back.

It's not fine furniture level. And I bet it's not 400K of cabinets either. 4k maybe. Nailed together plywood is always going to look like nailed together plywood. Let's hope there was some glue in there somewhere.

@minardi what would be the alternative as I don’t know . Thank you

It’s on the sides so very visible. What are the alternative to this as we don’t know how it’s supposed to be done using what skill to avoid this . Thank you

The alternatives are to ignore it, or pay $$$$ to upgrade to solid wood dovetail boxes or metal Blum Legrabox construction. But if the cabinets are of a similar sturdy but low end build level, no one wants to pay more for drawers than they did the cabinets. They will outlast you being disenchanted with the exterior style long before they fail.

So what I understand is that when the drawer is closed you will not see these marks, but when the drawer is pulled out, you will see them. Is that correct? If so, it is likely normal for the type of construction in the price range you paid for. Higher priced cabinets would use a kind of joinery that is not visible. Research higher priced cabinets and you will see different kinds of construction techniques used if you had paid tens or hundreds of thousands of dollars more.

Can you share a photo of alternative cabinetry finish ?

That’s what stapled plywood drawers look like with the drawers open. Drawers do not stay open. They stay shut.

Your questions make sense to me and I don't understand why others are being so harsh about this.

One kind of alternative drawer construction is with dovetailed joinery. Check out all of the steps that go into creating such a drawer. It is the most stable and expensive kind of joinery.

https://www.woodcraft.com/blogs/cabinetry-furniture-making/rabbeted-half-blind-dovetail-drawers

My guess is you were looking at cabinets in a particular price range that doesn't offer and didn't mention an alternative kind of joinery. Yours looks like a butt joint, which is the least expensive and least stable kind. If you had been looking at cabinets in a higher price range, the cabinet maker likely would have pointed out the features of their higher end joinery to you.

The only way you would not get nail holes on the side of your drawers is with dovetailed joints, which is higher quality, more expensive. Your visible nail holes can easily be covered with some wood filler. You can do that easily.

Dovetailed drawers isn't the only way. Avoid nail holes in non dovetailed drawer sides by using pocket hole screws with the pockets drilled in the front and rear sides.

The drawer front hides the fasteners on the front and the back is forever hidden after it is inserted into the cabinet.