Big Sur crashing randomly when external hard drive is connected

This problem first arose with macOS Big Sur 11.4 and has only gotten worse with 11.5.

I have 2 external hard drives connected to the USB-C/thunderbolt ports on my iMac 18,3 (2017):

• one is a 2TB G|Drive mobile USB-C
• and the other is a 2TB LaCie Porsche Design Mobile Drive which I use for Time Machine backups

Whenever either is connected to my iMac, Big Sur crashes randomly.

I've noticed there are quite a number of users on the internet and in this community who have reported issues using USB connected devices with macOS Big Sur.

https://9to5mac.com/2021/02/25/macos-big-sur-11-2-2-usb-c-charger-fix/

I'd like to include below the latest crash report:

I have also run Apple Diagnostics and got the resulting code: ADP000 which appears to indicate that the hardware is OK. Yet, I also ran an EtreCheck Report which observed some kernel panics. I am including the results here:

Finally, I don't know if it's a hardware issue or if it has to do with the component of macOS Big Sur that manages IO ports.

Any help to resolve this issue would be most welcome.