Talking about Bitcoin competitors. Ethereum is more senior than Polygon and Solana smart contracts. But Ethereum has not dreamed of becoming a competitor to Bitcoin.

I use Polygon more often than Solana. Both for trading coins and in terms of making transactions. Nonetheless, this blockchain can develop rapidly. This is also due to the recent increase in Ethereum blockchain transaction fees. So that new token developers prefer to use Polygon and Solana. If you are used to it then it is difficult for users to leave it. Although Ethereum blockchain transaction fees are back to normal.