There’re also real dual-SIM iPhones, but they’re market restricted (typically to China).
Docs for SIM + eSIM: https://support.apple.com/en-gb/guide/iphone/iph9c5776d3c/io...
Docs for dual physical SIM: https://support.apple.com/en-us/HT209086
Docs for SIM + eSIM: https://support.apple.com/en-gb/guide/iphone/iph9c5776d3c/io...
Docs for dual physical SIM: https://support.apple.com/en-us/HT209086
Now my phone is still confused after restoring from backup and cannot see the eSIM. I’ve been filing feedbacks and radars to no avail. If I was on Android I’d have just rooted it and deleted the offending (mis)configuration file already!
You can't access the whole filesystem of a running iDevice with it, but you can access the whole filesystem of the backup. So I suspect it might be possible for you to clean-up the backup offline & then restore it. (At a minimum it should enable you to extract the valuable contents out of the backup and manually restore it on top of a clean iOS install.)
I've used it with some success to extract info from the photos database. I just wish they had a consumer-facing (read: more affordable/perpetually licensed) version of their CLI tool.
[1]: https://imazing.com/