Not all Wi-Fi passwords transferred to new iPhone

Hi everyone, I need some help—has anyone else run into this? I was transferring data from a 17 Pro to an 18 Pro. I have a lot of apps and files, and the transfer went well overall, but there is one problem: the Wi-Fi passwords didn't all transfer. I have 570 of them, but only about 250 made it over. I had created a Windows backup but forgot to check the "encrypt data" box—perhaps that’s the cause? I also tried syncing, but again, only a portion transferred (those same 250 or fewer, since I manually scanned QR codes for about 100 of them). Please help—what are my options? I really don't want to transfer the data all over again, as I have so many apps that require re-authentication. Has anyone dealt with this specific issue of transferring just the Wi-Fi passwords? Thanks.