Sure.
When you've changed the URLs, you can use some JavaScript to show/hide based on these. Here's a link to an article that Brad wrote which covers one way to do this:
How to setup multi-language content on any Squarespace Template
Note that his solution isn't written in pure JavaScript so it will require you to include the jQuery library. His article was last updated 16 months ago, so it refers to a version of an older version of jQuery that has known security vulnerabilities. Instead of using 3.4.1 in his step 4, you'll therefore want to use 3.6.0 (March 2021):
<script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha384-vtXRMe3mGCbOeY7l30aIg8H9p3GdeSe4IFlP6G8JMa7o7lXvnz3GFKzPxzJdPfGK" crossorigin="anonymous"></script>
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