The result: there is now effectively one dominating web browser run by an ad company who nigh unto controls the spec for the web itself and who is finally putting its foot down to decide that we are all going to be forced to either used fully-locked down devices or to prove that we are using some locked-down component of our otherwise unlocked device to see anyone's content, and they get to frame it as fighting for the user in the spec draft as users have a "need" to prove their authenticity to websites to get their free stuff.
(BTW, Brave is in the same boat: they are also an ad company--despite building ad blocking stuff themselves--and their product managers routinely discuss and even quote Brendan Eich talking about this same kind of "run the browser inside of trusted computing" as their long-term solution for preventing people blocking their ads. The vicious irony: the very tech they want to use to protect them is what will be used to protect the status quo from them! The entire premise of monetizing with ads is eventually either self-defeating or the problem itself.)
Brave is an advertising company, but we’re quite different from Google and others in this space. Brave's ad notifications are opt-in and engineered in such a way to protect and preserve user privacy. I'm not sure where you saw Brave engineers talking about ways to prevent users from blocking our ads—we don’t try to prevent users from blocking Brave Ads.
If you wish not to see Brave’s ad notifications, you can easily avoid them (by not opting-in in the first place, or by throttling/disabling-entirely). There are no special hoops to hop through, or technical incantations to utter. We believe digital advertising is better when it is built on user-first principles and consent.
If a user opts-in to Brave’s ad notifications, their device proceeds to routinely download-and-maintain a regional catalog of available inventory. The user's device then evaluates the catalog entries for relevance. User data is NOT sent off-device in Brave’s model. If a relevant ad entry is found, it is then displayed to the user in such a time and manner for minimal distraction. When an ad notification is shown, the user receives 70% of the associated ad revenue for their attention (no clicks required).
Again, if the user wishes to not see ad notifications, they can simply choose not to opt-in to viewing them. If the user wishes to not see the occasional sponsored image on the New Tab Page, they can turn those off from the New Tab Page itself with 2 clicks ( Customize › Show Sponsored Images). Importantly, the user is always in control. They decide whether ads will be displayed, and to what degree (e.g., the user can set a limit on ad notifications per hour).
Brave isn't interested in coercing users to view advertisements.