Hot or Cold wallets are depend on people's opinions. For me, because Electrum wallet I often do use it offline, (where I can create and sign transactions offline), I assume that Electrum wallet is a kind of cold wallet, such as a hardware wallet. You can use Electrum wallet also on air gaped devices where never connected on the internet. So it's a different situation like another hot wallet such as blockchain.com, coibase wallet, or exchange wallet where if we want to use it we must connect to the internet.
Hot and cold wallets must be set up manually by a user so security of a wallet depends on how a person sets it up and uses it later.
Cold wallets are safer than hot wallets but with two different practices, good and bad, results from using a hot and a cold wallet will be different too.
Basic rule is don't store your main capital in a hot wallet that is more vulnerable to hack than a cold wallet.
Electrum wallet can be used as a hot or a cold storage wallet, depends on how you set it up. It can be used on computer and mobile devices, very convenient. You can set up a multisig hot wallet with Electrum.
Creating a cold storage wallet in ElectrumCreating a multisig wallet