All that doge themed coins are just one big scam. It's like a lottery with pretty low winrate
Not really, nobody knew that 2021 would be that good for Dogecoin but it was. For example, when we take a look at $WIF, nobody was 100% sure that it would generate good returns but it did.
The better approach is to invest in what you can afford to lose and in a coin that you feel has potential.