Software Update for macOS Venture 13.5.1
Unable to use bluetooth keyboard or mouse until having to re-start computer after sleeping
iMac 27″ 5K, macOS 13.4
Question marked as
On M-2 to reset the Bluetooth chip in your Silicon Mac is boot in Use macOS Recovery on a Mac with Apple silicon - Apple Support pair your bluetooth device then boot back into Regular mode and pair it again and chip will be reset!