Electrum is, for example, one of the better BTC wallets, but it's not easy to figure it out at first!
I don't know what you found complex about Electrum wallet, however, i disagree, Electrum wallet is very easy to use and a newbie can figure it out immediately.
As for your list, you make a 'list of best BTC wallet' and you include trust wallet and Atomic wallet, seriously? Do you remember that many Atomic wallet users lost their funds, and even today we do not know what went wrong and the reason why their funds disappeared. You should fully understand which BTC wallet is safe before making recommendations.