我们 看到 不止 是 在 中国
what does the 是 do here?
从评论中，我们看到不止是在中国，其他一些国家的年轻人也面临相似的问题。
From the comments, it becomes clear that, apart from China, young people from other countries are faced with similar problems.
Why is the 是 here? is it just for fluency?
我们看到不止是在中国
我们 we
看 see
到 (completion component)
不止 not limited
是 is
在 in
中国 China
See also 是 - Chinese Grammar Wiki