Edit: I opened another tab in a separate Firefox container and didn't get the pop-up. I believe I read this shit being account-based when the first reports of Youtube's anti-adblock measures started making the rounds and it seems to be the case still
never liked invidious' UI but it seems like it might be a bit less likely to be rate limited than the popular Piped instances I usually use
honestly yt-dlp and piped and shit means I almost never have to use youtube's actual UI. I used to pay for premium but the cost on that has gone up and I'm no longer interested in the bundled music service either