I was unable to used the 8.0 nightly. Browsing became broken and I was unable to access all the main gui tabs. I reimaged back to 7.20.3 and everything was perfect.
Never had any problem with Adguard for Windows except a few years back when it had an incompatibility with Kaspersky. iOS version also works with no troubles on 4 phones. No great difference in browsing speed either. As any security software, performance greatly depends on what is installed on your machine.
I tried out the nightly builds. My browsing is still slow with AdGuard. Advanced settings lack the option to reroute secure DNS browser traffic through the app's resolver. I hope it remains a feature in future updates. In general, it's unstable and frequently freezes during navigation.
I was unable to used the 8.0 nightly. Browsing became broken and I was unable to access all the main gui tabs. I reimaged back to 7.20.3 and everything was perfect.