Mixed up data on concurrent requests to vue3 SSR app with apollo client

I'm trying to convert a vue3 SPA that uses apollo client to SSR with the help of vite-plugin-ssr. I'm facing an issue of mixed up data on concurrent requests to the express server. The apollo client instance used to be global in the SPA, so I'm trying to create and use a new instance on every request.

I had this file that included the creation of the client, and wrapper functions around the client functions :

// apollo.ts - SPA

const apolloClient = new ApolloClient({
    ...
})


export const apolloQuery = async (args) => {
    // some logic

    const response = await apolloClient.query({...})

    // some logic

    return response
}

...

Those functions are used in components and store.

The integration example of apollo in vite-plugin-ssr repo uses @vue/apollo-composable

So I tried :

// app.ts

import { DefaultApolloClient } from "@vue/apollo-composable";
import { createApolloClient } from "./path/to/apollo.ts";

const createApp = () => {
   const apolloClient = createApolloClient({...})

   const app = createSSRApp({
       setup() {
          provide(DefaultApolloClient, apolloClient)
       },
       render() {
          return h(App, pageProps || {});
       }
   });
}

// apollo.ts - SSR 
import { useApolloClient } from "@vue/apollo-composable"

export const createApolloClient = (args) => {
    // some logic

    return new ApolloClient({...})
}


export const apolloQuery = async (args) => {
    // some logic

    const { client } = useApolloClient()
    const response = await client.query({...})

    // some logic

    return response
}

However this does not work as intended because useApolloClient depends on providing the apollo instance to the app (1), or using the provideApolloClient function (2) :

• (1) this means that calls can only be made during component setup or life cycle hooks, as it leverages the vue core function getCurrentInstance to inject the client. So I can neither use them in the onBeforeRender that vite-plugin-ssr provides, nor in vue onServerPrefetch hook, nor in async call to store action.
• (2) provideApolloClient sets the client to a global variable, and the same problem occurs on concurrent requests.

Am I in a dead end and a complete refacto of the apollo client use is needed, or am I missing something ?