"It depends". But potentially, yes. Depending on the basis of the flaw. It could potentially affect Electron apps too, as they contain both chromium and node -

"It depends". But potentially, yes. Depending on the basis of the flaw. It could potentially affect Electron apps too, as they contain both chromium and node - though the content that can be thrown at their internal instances is likely a lot less varied than that seen in the wider internet that your desktop web browser is routinely exposed to.