e2e CI tests failing on ubuntu-latest

[S-Coyle]

Looks like the last e2e CI pass on Ubuntu was on 24th May. Since then they have been failing consistently with the error

ERROR The Electron 7.1.11 / Linux 0.0 browser disconnected. This problem may appear when a browser hangs or is closed, or due to network issues.

Example of this failure here

Tests pass fine on macOS (local) and Windows (CI).

Able to reproduce on my Ubuntu 16.04 VM with steps below where I basically follow the CI file process...
The browser opens but it remains blank and it hangs for a while then closes, this repeats multiple times before the error appears. On macOS I see the browser working through the tests.

Steps to Reproduce (for bugs)

As per the e2e CI file here:

1. yarn

2. yarn install --ignore-engines --network-timeout 800000

3. yarn package

4. yarn test-e2e-packed