Topic: Switch 2 Account Transfer

I recently bought a Nintendo switch 2 to be my personal system, while my family uses the old Nintendo switch
However, after performing the system transfer, several accounts were transferred over unintentionally and I cannot transfer them back as I cannot find an option to do so on switch 2 because the accounts are not linked. Is there any way I can get the unlinked accounts back on the old switch without losing their save data?

Just add them back manually on the old switch. The accounts are not restricted to a single console, you can log into them on multiple devices.

You can transfer save data manually too, it will just take a bit.

@FrostshadeWC A system transfer is the only way to transfer a switch user if the switch user isn't linked to a nintendo account.