Frankly, who even uses the USB port on their phone for data transfers unless it's an emergency? I just stream media from my NAS using Navidrome and Jellyfin, use Syncthing to back up my photos and sync files I need, and mount the SMB shares I need to access. The eMMC and SD cards are slower than USB 3 speeds, anyway. Most SD cards don't even max out USB 2.
The only sensible real life use case for USB 3 for phones would be external monitors.