'Security Issues: Injecting web3js into the window object of HTML

So I recently started learning web3js (using it with angular). And since using web3js with angular through the npm package is a bit cumbersome I was instead using a web3js cdn and injected it into the window object of my HTML (at the and of the body). Like this:

<script>
    if (typeof window.ethereum !== "undefined") {
        window.web3 = new Web3(window.ethereum);
    }
</script>

I was wondering if there are any security issues doing it like this? Should I stop doing it? I sadly couldn't find any information online regarding this topic. Also is it bad in general when I inject stuff into the window object or is it fine?

Was googling few hours but couldn't find any useful information.

javascripthtmlangularweb3js


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