It depends on what is your definition of scam.
In my opinion, any coin/token which has been created without any real product, without any new technology, without solving any problem, without any purpose other than making money for the creator is a scam.
The coin/token may give a good return to some holders and traders. There may be a real team behind the coin/token, a whitepaper and a road map. It may be listed on big exchanges and still be a scam.