Moving MATIC from Coinbase (Pro) to Polygon Network

I am trying to get my MATIC tokens that are currently on Coinbase Pro onto the Polygon network. I am amazed that there is not better documentation on this process.

I have gathered that MATIC can only be transfered from Coinbase Pro onto the Ethereum network. Some exchanged, like crypto.com, allow for transfers directly from the exchange to the Polygon network. If that service is not offered by your exchange, you will need to bridge it yourself. This will be a bit more expensive because it requires moving to something like MetaMask and then using the bridge. This is at least two transactions and moving MATIC on the ETH network is not cheap.

I have transferred from Coinbase Pro to MetaMask. I am now attempting to use the official Polygon bridge - https://wallet.polygon.technology/bridge. Unfortunately, even though I have ETH and MATIC in my MetaMask wallet, the bridge is not recognizing that I have funds. I have connected my MetaMask wallet to the bridge and signed the transaction. Still, it does not recognize my funds. They are stored on my Trezor. I tried with a different MetaMask wallet that is not associated with my Trezor. This seemed to recognize that ETH was in the wallet, but still thought that I had 0 ETH.

Any ideas on moving MATIC from exchange to Polygon network. Also, general ideas on the best way to get funds on the Polygon network (i.e., exchanges other than Coinbase)