This is the way. The KeepassXC File is under your control, and you're able to make as many copies, as are necessary. 2fa is the right thing, but having the TOTP

This is the way. The KeepassXC File is under your control, and you're able to make as many copies, as are necessary. 2fa is the right thing, but having the TOTP Codes on only a single device will get you in bad situations.