I have only ever used the Adblock feature through R.O.B.E.R.T. on my desktop, and never on my phone. I have Adblock switched on through the app, and i am still getting ads while watching YouTube. I am on an iPhone. Am I doing something wrong or does it not work on mobile? I am using cellular data, for the most part, when I watch/listen to YouTube. My VPN is turned on and the Adblock feature is switched on.
i don’t have windstribe currently installed (have in the past tho) and don’t have ads on youtube mobile site 
https://youtube.com/shorts/tX419R3-De8
You can try watching through a browser with ad blocking built in. I know Brave has that.
Thanks for letting me know!
Yeah, I’ve been using AdGuard for about six years. It works perfectly with YouTube even with the trick they had to implement last year with the release of iOS 15.