Pull an old phone out of a box. Put 2FA on that phone, problem solved. Doesn't even require a sim card.
nostr:nevent1qvzqqqqqqypzqwpfuq8zklupl986zyp7m6pmu8c5qujzn8y6xue0dz4a8rpsw5j7qqsv0vud9vwu6utzg74xv0t36gharsy5vpkayvfytsl4fw3qhc442zs4c4k3p 

 my brother from another mother!