I agree that it can't be simpler than the current process (although I may be wrong), especially if I remember what it was like in the past when some people needed hours (or even days) to complete the firmware upgrade. Some people are quite afraid of this procedure for fear that something will go wrong and that they will lose their coins, although because of such things we have a backup.

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Nothing lasts forever, so one should not expect Ledger to always exist. In the event that Ledger stops supporting its devices, anyone who doesn't feel safe will look for an alternative.