Benjamin,
I share Ignatius’s perspective on this matter. Given that file renaming has been activated, it suggests that a drag action is being misinterpreted as a simple click.
This could potentially stem from an unreliable Bluetooth device that is experiencing intermittent connectivity issues. Additionally, the fact that Quick Look is opening sporadically indicates the possibility of unintended inputs being generated, whether from a keyboard, another device, or even from the main pointing device, which may have custom buttons programmed.
Unfortunately, we currently lack information on the specific type of main pointing device in use, adding a layer of uncertainty to the situation. It might be beneficial to investigate the settings of the Bluetooth device in question and check if there are any customization options on the main pointing device that could be adjusted to prevent these stray inputs.
Monitoring the behavior of the devices could provide further insight into what is causing this issue. Overall, there seems to be a combination of factors at play, and a thorough examination of both the hardware and software settings might help in resolving these unusual occurrences.