What?

For me it work 70% of the time no root

Apkmiror + Lucky Patcher = Maximum booty

Other than jailbreak I don’t really know I haven’t use IOS in years

Browser with extensions is great and all but Youtube Revanced still way better option it support gesture google account (that google can’t track you) picture in picture and it’s easier on your device’s ram/cpu, for in app ads you can try Lucky Patcher to remove ads as long as the app is not using account to buy premium features LP should work on most app

Audacity free and open source also user friendly

Windows Anti malware and Windows Firewall to block the exe from network

Yeah probably, you can use Telegram (use a throw away phone number to create an account)