Right now when I do transactions using my Metamask or Trust Wallet, I only left a few dollars for each blockchain (e.g, Binance Smart Chain, Polygon, etc.) for gas fee payments, buying certain tokens in private or presale campaigns or minting NFTs.
Trustwallet is a mobile wallet, Metamask is a web wallet. Web wallet are the most vulnerable to online attacks.
Do not get this wrongly, this is not about hardware wallet, hardware is secure, but this is about airgapped wallet, a wallet on a truly airgapped device are one of the most safe and secure wallet, it is also a cold wallet.