Steps to Reproduce:
Does this issue occur when all extensions are disabled?: Yes
Attached is a developer console view.

Backspace (delete) key doesn't work for me at all on Mac now on the latest insiders. Dunno if that's related or not.
+1 on Backspace (delete) not working on Mac with latest insiders
Keybind settings are also inaccessible
For me, on linux, all but character keys are broken.
Also, shortcuts don't seem to be working (command+p, command+f, etc)
I'm running on latest Lubuntu and here's my traceback in case anyone was curious:

Working around by downgrading for now:
$ sudo apt install code-insiders=1.36.0-1559798873
Can you please provide the content in your keybindings.json file?
Steps to Repro:
keybindings.json fileSorry for this. Fixed it and there will be a new insiders soon with the fix.
New insiders released.
Awesome... Thanks a bunch
Most helpful comment
New insiders released.