Having finally decided to try working standing up during lockdown, I invested in a bluetooth keyboard and mouse (a trackball actually). My computer is a pretty decent custom built Windows 10 PC and the bluetooth connection comes from a dedicated PCI-E card.
The trouble is that both these devices simultaneously and regularly (but randomly) disconnect themselves (from a few minutes to a few hours apart). They reconnect as soon as I open the Windows 10 Bluetooth settings page (I kept my USB keyboard and mouse plugged in). I occasionnally used Bluetooth headphones before and I never noticed this behavior. The only difference I can spot is that both the keyboard and the mouse seem to be Low Energy devices, but I don't know what to make of that.
This is pretty disturbing, especially during focused work... Any pointers?