Good day, just want to share my experience,
I am using 2fa as my security in my emails and exchange accounts, so one day I nearly lost my phone and that phone holds majority of my pins, 2fa, etc. so I thought I lost all, luckily I found the phone. So now I'm thinking of buying an extra phone for backup. What else do you recommend for backup?
Yes, that's the best thing to do in order to safeguard your Bitcoin. Also, it would be better to just install additional security like google authenticator so that your coins are safe.