[Gazoche]

The backup phone is a good idea, I do this too but unfortunately some banking apps refuse to allow more than one "authorized device" for 2FA :/

[GaryNumanVevo]

+1 I tried the backup android phone thing and I got blocked from logging into my Chase and Fidelity apps on my phone!!! Took like 2 weeks with support and a visit to a physical bank branch to resolve the issue.

[futureshock]

My workaround is I use SMS 2 factor for banking and use my Google Voice number.