There doesn’t seem to be a workaround, but if you make sure you’re up to date, you don’t need one because the bug will be squashed

Probably the silliest thing to say there. "Make sure you are up to date as it will be fixed... eventually." What about reverting to a version that didn't have it?

TL;DR: of the bug

When we heard that the vulnerability was connected to FileReader, we assumed that the bug would involve reading from files you weren’t supposed to. Ironically, however, it looks as though attackers can take much more general control, allowing them to pull off what’s called Remote Code Execution, or RCE. RCE almost always means a crooks can implant malware without any warnings, dialogs or popups. Just tricking you into looking at a booby-trapped web page might be enough for crooks to take over your computer remotely.

Seems pretty serious for "oh lol just wait for the update"