Happens to me too. Very annoying.

Why doesn't Opera work around this by for example pretending to be Windows client? What are restrictions for this not to happen?

I think Opera Mobile only needs an Adblock Plus option to disable ads. UC Browser has that feature. And Firefox has extension support.

I used Firefox for a while just because it had AB, but I use Chrome on my phone. When I go low on mobile-data I switch to Opera because it has better "Data Saving" mode.

So opera uses its own player for html videos, and have the nice feature of download. But I don't see a way to select quality (or resolution ... whatever)

For example if there is a vk.com video embedded in a page, we cant select quality when downloading it.

Is there a chance a feature like that will be implemented?

Thx