Version of Android: 10
Phone model and manufacturer: Huawei P20
Version of Opera for Android: 91
Ad-blocker enabled or disabled: no impact
Data savings: disabled

On a webpage with a YouTube url, if I click on it, the video opens in the official YouTube app. It would be fine if YouTube was my default app for YouTube links. But it's not, since I use NewPipe for this purpose.

Every other app (WhatsApp, other browsers) opens YouTube links in NewPipe, as I have set it as the default app in my Android settings.

Opera used to open correctly YT links in NewPipe, until version 86. Since this version (with the revamped ad blocker), Opera has been overriding my default app by opening the YouTube app.

It seems that Opera is aware that my default app is NewPipe, as if I disable the "open in app" setting and I open a YT video link, menu offers me to open the link in NewPipe, not YouTube app.

If I disable the YouTube app in my settings, any YT link will open in Opera, not NewPipe, despite the "open in app" setting enabled.

Issue can be observed in the following video: https://i.imgur.com/FHiC4Vw.mp4