Question,
Because I use Brave and Brave's adblocker is (my guess) rebuilding AdGuard Mv2 as much as possible. I think Brave's create your own (user) script(let) functionality will bypass the last Mv3 restriction to provide (in a slightly different way) uBO Mv2 like functionality. Firefox is now also implementing Brave Rust based adblocker, so it seems that uBO Mv2 will get a second life in the rist based adBlocker of Brave (and Firefox).
Today I enabled the Brave adblocker again and using it only in standard mode with only shields enabled Brave default AdBlock filters and the filter at the bottom AdBlock Only Mode supplemental list and paired it with UBS with Brave Shield disabled. Running it in worry-free mode (with 3P-code and download protection enabled), my Speedometer 3.1 bench mark was 20.2, while with Brave Shields disabled and AdGuard Base enabled it ran 20.0 (for comparison uBO-lite with default filters enabled ran 19.9) I repeated the test 3 times, each time with fresh browser start in different sequences (each time restarting the browser) to reduce impact of Linux cachinh mechnanisms.
from 20 to 20.2 is only a 1% percent performance increase, but ... I spend weekend tuning my old Laverda motor to gain 0.5%

So I am considering a special version of UBS, called AdShield Power Tools (for Brave) (when I develop a Firefox version it would be called AdShield Power Tools (for Red Fox).
The Block list Panel ould be called the Worry-free settings and the dashboard would only have
- Allow (white) List
- Custom rules manager
- Worry free settings
a) enable 3P-code and download block on domains on on familiar domains
b) enable additional security settings (the protections on Security & Privacy), but simply listed
c) add or remove generic domains and country codes for 3P code and download protection
d) enabled (auto deny cookie prompts)
e) enable worry free at startup
The popup panel would only have
- System settings (opening the dashboard)
- Worry-free safe surfing mode
- Cookie consent clicker
- Dynamic DNR filtering
- Privacy Inspector
What do you think of this idea to make an internal adblock companion which only has the power tools no filterlists?