Hardware wallets supports bsc tokens as well, I helped a friend to set it up using Ledger Live for Ledger hardware wallet, you will need to open ledger live on your PC and connect your hardware wallet through USB. Ledger Live will allow you to manage the crypto coins on your cold storage device over different blockchains, the process is just like adding smart chain to metamask wallet, full guide I used for my friend is below.
https://academy.binance.com/en/articles/how-to-connect-a-ledger-nano-to-binance-smart-chain-bscYes, but in this case I will store BEP-20 on my Ledger wallet adress but still with seed which was generated on Metamask, understand it I correctly?