Select "Pair device with pairing code". Enter that code directly into Shizuku's drop-down notification.
adb shell sh /storage/emulated/0/Android/data/moe.shizuku.privileged.api/start.sh Use code with caution. Select "Pair device with pairing code"
adb shell sh /storage/emulated/0/Android/data/moe.shizuku.privileged.api/start.sh uptime Select "Pair device with pairing code"