I've been a Graphene user for a few years now. I'm currently using a Pixel 8.
I have always backed up my Contacts list as a .vcf file to the phone's local Download directory, then copied it to another device for backup. Lately when I do this in the Contacts app, 1) the .vcf file doesn't show up in the Download directory and 2) if I add or edit a Contact, when I select "save" the phone offers me two contacts with the same name to save to.
So I think Contacts is now dumping the backup into the same directory it keeps the "real/active" contacts list in. But I can't find this path locally on the phone, and I can't find it when I have the phone connected to my laptop & the phone is in USB file transfer mode.
Any ideas? This has been going on for a few weeks and I suspect it's from a recent OS update.