Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 479)

Maintaining a Wi-Fi Connection When the Camera Is Off
Even when the camera power switch is set to < >, as long as it is paired to a
smartphone via Bluetooth, you can use the smartphone to connect via Wi-Fi and browse
images on the camera or perform other operations.
If you prefer not to connect via Wi-Fi to the camera when it is off, either set [
Airplane mode ]
to [ On ] ( ) or set [ Bluetooth settings ] to [ Disable ].
Caution
This function can no longer be used if the wireless settings are reset or the
smartphone connection information is erased.
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