If you want to compare keys of Dictionary, then:
var dict1 = new Dictionary<string, List<string>>();
var dict2 = new Dictionary<string, List<string>>();
// something..
if (dict1.Keys.SequenceEqual(dict2.Keys))
{
// your code
}
If you want to compare values of Dictionary, then:
var dict1 = new Dictionary<string, List<string>>();
var dict2 = new Dictionary<string, List<string>>();
// something..
var d1Keys = dict1.Keys.ToList();
var result = d1Keys
.All(key => dict2.ContainsKey(key) && dict1[key].SequenceEqual(dict2[key]));
// result == true, if equals
solved How to compare list values in a dictionary