typedef struct {
    int bar;
} Foo;

int main()
{
    Foo foo = { .bar = 42 };
    return foo.bar;
}

The local highlighting finds all three occurrences of 'bar', if you click on one of them.

However, Find Usages only finds the declaration and the read access in the return line, and it finds nothing if executed while the cursor is on .bar.