the change from your transaction was sent to a Native SegWit address that Trezor Suite doesnβt monitor by default. Mycelium recognized the address, but Trezor Suite didn't since it only watches specific derivation paths ( m/44'/0'/0'/0 1... SegWit P2SH-P2WPKH m/49'/0'/0'/0 3... Native SegWit P2WPKH m/84'/0'/0'/0 bc1q... ..Taproot P2TR m/86'/0'/0'/0 bc1p... ..
biggest mistake??? you being sarcastic lol... anyways, before you are done, when zaps π