I keep on the desktop version of Electrum
on Mobile I use Blue Wallet.
Wouldn't it be best to store the BTC in a wallet that pays high interest?
It is no better to be concerned with privacy security than to be concerned with the interest paid.
This is not a bank where we save fiat money.
It's safe to get profits because holding for a certain period of time is more effective than getting high interest payments but risking asset security.