What is the best dual boot Android OS for getting easy root and unroot access?

I have installed Android x86 on my Windows 10 HP Laptop. It was "Android-x86_64-9.0-r2.iso". I ran it on my PC and it opened rooted. I installed an app I required. The app has got lots of videos that are supported for playing only on an unrooted device.So, I couldn't play the app's videos. What I did: - I enabled developer's options and disabled root access in it. I still couldn't play the videos. - Enable Developper Mode. On the developer's options, enable full root access. Run the terminal emulator. Use the followings commands : > su > rm /system/bin/su > rm /system/xbin/su After typing these commands as: *These files are read only files* type of message. The last command resulted in a question y/N and after writing 'y', I still got the former message. None of these methods worked. I need an OS that gives me both root access and unroot access as and when I require. This is quite easy in Android emulators as they have a single option on setting which can enable or disable root access. But my app is not supported on emulators. Hence, the need for OS. PS: I don't know if this is the correct site for my question. I couldn't find very appropriate tags. Please suggest the correct website.Thank you. PS: I am asking regarding whether other OS might be suitable for what I need. Like PrimeOS, BlissOS, RemixOS, etc.