app/page.jsx

export default async function Page({ params, searchParams }) {
  const res = await fetch(`https://${process.env.NEXT_PRIVATE_URL}/api/item/get`, { next: { tags: ['item'] } })
  const data = await res.json() || [];
  return <ItemContainer searchParams={searchParams} data={data} />;
}

app/api/revalidate/route.js

import { NextResponse } from "next/server";
import { revalidateTag } from "next/cache";

export async function POST(request) {
  const secret = request.nextUrl.searchParams.get("secret");
  const tag = request.nextUrl.searchParams.get("tag");

  if (secret !== process.env.REVALIDATE_SECRET_KEY) {
    return NextResponse.json({ message: "Invalid secret" }, { status: 401 });
  }

  if (!tag) {
    return NextResponse.json({ message: "Missing tag param" }, { status: 400 });
  }

  revalidateTag(tag);

  return NextResponse.json({ revalidated: true, now: Date.now() });
}

update and revalidate

await itemModel.updateOne(
      { uuid: uuidItem },
      { disabled: !item.disabled }
    );

    const revalidate = await fetch(
      `https://${process.env.NEXT_PRIVATE_URL}/api/revalidate?tag=item&secret=${process.env.REVALIDATE_SECRET_KEY}`,
      {
        cache: "no-cache",
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
      }
    );
    const revalidateData = await revalidate.json();
    console.log(revalidateData); // revalidate: true

list items

{data
              .filter((item) => item.disabled === false)
              .map((item, index) => (
                <Item key={index} item={item} />
              ))}

I'm making the item disabled. I checked it from the database. That item is disabled: true. But I'm refreshing the page, I still see that item, which means it fails to revalidate but returns true. I'm very confused. Can anyone help?
Next.js 13.4.19