@Pouriya-Jamshidi Yeah I figured it was something YouTube did intentionally (or not) that broke the extension. In case this is helpful at all, when I first started coming across the return of the button it wasn't as frequent as it is now. And it'll only do it if I'm watching multiple videos in a row, versus say when I'm only watching one video that's an hour long or more. I wanna say it was January when it first started happening, with the frequency increasing by early March.

This isn't the first time I've had an app (on PC and on mobile) that improved something about YouTube break because YouTube either caught on about it and deliberately updated something just to break the app or it was just a general update to the site that just randomly happened to break the extension or app. I appreciate that you're going to look into it.

Unfortunately this has stopped working for me as of a few months ago. The "Continue watching" button still persists to plague my being able to listen to my music while cooking dinner without having to constantly go back to my room to click the damn button. I hate that it even interrupts me in the middle of a video. Like wtf youtube, what is the damn point of this annoying ass button we all want removed? Oh I'm using Opera on my PC, so I'm using the native website for YouTube (versus like YouTube Music or the Android vers of Opera)