I don’t know if anybody else has already suggested this, but it’s important to reduce/avoid miner fees.
It would be nice if Trezor adds the Bitcoin Lightning Network for receiving and sending Bitcoin.
Some exchanges already support withdrawing and depositing Bitcoin using the Lightning Network. Like Kraken, which supports it, see: support .kraken .com/hc/en-us/articles/5068216131988-How-do-I-send-bitcoin-on-the-Lightning-Network-