I don’t have that problem, as I take better care of my system.
What you call a workaround is just part of the process to allow your update to complete; after it has completed, your issue should no longer be an issue.
You can simply install electron from the official Manjaro repository. As it’s a meta-package, doing this will install the current version; which, incidentally, is electron34.
But, you told us:
So, if that was true, the first step would have been to find an alternative way to perform these tasks if “Gnome-terminal does not start”; and so far you’ve ignored that completely.
In the meantime:
You might enjoy this topic from Arch;