out of the 5 tokens mentioned, I would probably choose Polygon to hold for 5 years. however, currently the potential of polygons is the same as that of BNB. I feel that people will choose Polygon after BNB. So, when polygons have also become an alternative that is often used, I think the price of polygons can reach a high price. I feel that this is like the position of BNB when it competed with ethereum a few years ago. it's just, although I think that this token can't go beyond the top 3 coins, namely bitcoin, ethereum and BNB.
What will happen to the layer2 blockchain network, after ETH completes the upgrade to POS. once ETH offers cheap gas fees and transactions become faster. Layer 2 solutions are still being used. I also like and keep matic but I don't know what its future holds when upgrading eth.