I'm also experiencing this issue. Pinterest isn't loading properly in Opera GX after a recent update.

Even in private mode, I now get a white screen.

Chrome works perfectly fine.

Console error: Uncaught SyntaxError: Unexpected token _client.ru.

What I've tried:

Clearing cache, cookies, localStorage, IndexedDB

Disabling GX Control, VPN, extensions

Resetting settings and reinstalling the browser

Running with a clean profile

Nothing helped. This seems to be a browser-side issue, as it started happening around February 20 for many users. Let's bring more attention to this so the developers can fix it.