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Authy got hacked, and 33 million user phone numbers were stolen
(appleinsider.com)
This is a most excellent place for technology news and articles.
Bitwarden has a 2FA recovery code possible so you could use a unlabeled hard copy of the code. It cycles after every use so it would get you one recovery and doesn't use SMS so it's immune to SMS shenanigans.
That's potentially a solution then, as I guess in order to buy a new phone I would need to have not lost my wallet too at least, so I guess I could keep those items together for equivalent recovery possibility
Okay that may be a goer, I'll look a bit more into it, thanks!