Your comparing apples and oranges. A hot wallet (MetaMask) and a hardware wallet (Trezor) each serve a purpose, and both can be used independent of each other or in connection with each other.
If you like using MetaMask as your wallet interface, you can link a Trezor to your MetaMask wallet. You can still have accounts in MetaMask that are independent of the Trezor, so you can have both; hot wallets and a hardware secured wallet in the same interface.
Although, (obviously you own alts,) for your hardware secured wallets you might find that the Trezor Suite desktop application is a better alternative to MetaMask. You can have both installed and access the same wallets from either interface, and you never have to choose between them if you don't want to. Flip a coin to decide which one you want to use today.
You made a good point, that's one of the advantages of using hardware wallets. You can use compatible software wallets as a bridge (using only the interface resources), while transactions are signed in the isolated environment of the device. I've mostly used Trezor through the interface of other apps. The security remains exactly the same.
So @OP if you like Electrum, you can use Trezor integrated with Electrum, the same goes for Metamask, even though Trezor Suite already has everything a beginner user needs.
I would choose Trezor without hesitation and wouldn't waste time comparing other devices. I would buy starting with the Trezor Safe 5 onward, which is touchscreen...
My only alternative to Trezor is Bitbox02 (legacy or nova). Now, when it comes to airgapped wallets, I would recommend Krux, Coldcard or Passport Prime...