Hello,
I am only seeing 144 out of 197 contacts getting synchronized from NextCloud to my iOS device (73%).
This seems to be a re-occurring topic over the years. Unfortunately, I have not yet been able to identify a workaround for me. E.g. exporting the contacts from NextCloud as vcf and re-importing did not resolve the issue.
The original data NextCloud was created from an Google Contacts export.
Checking the contacts, which are NOT syncing to iOS, I recognize that all affected contacts have an address information.
Of course, these are some the most important contacts for me. Therefore, I am looking for a solution.