I seriously doubt that - the SODP binaries are for the open source drivers, so it is really possible that the drivers of the kernel wont work with their firmwares. Also the AOSP based on SODP by Sjll does work - so it is more a LOS thing.Will reflashing software binaries from Sony help with GPS and WiFi issues? Probably it will install correct drivers or something. https://developer.sony.com/file/download/software-binaries-for-aosp-android-10-0-kernel-4-14-seine/
But hey - you have backups! So a little test wouldn't hurt