VirtualXposed VS LADB

To add to this, if you want to actually isolate an app, use twoyi or VirtualXPosed. The android work profile is not enough, as lots of data is still shared between the work profile and the normal profile.

(FOSS)VirtualXPosed

I recommend VMOS Pro (Reliable but proprietary with a good privacy policy), or VirtualXPosed (unreliable but FOSS).

link: https://github.com/android-hacker/VirtualXposed

You have to drag and drop the ARM translation kit and use V 0.18.2 of VirtualXposed.

The idea is to try setting up certificate and proxy normally, then install VirtualXposed (you can grab apk from releases), open it, install Japanese version of FFRK inside of VirtualXposed, and at last run the game and see if you can read game traffic. If it works, it could be investigated further if/how this approach could be extended to Global version too. If not - well, it was worth a try.

you can find Ladb on Github as it is open sourced

Then there's the fact that starting with Android 11 it's no longer necessary to first use ADB over USB to initiate ADB over network so, anybody can start ADB on the device itself, use apps like Shizuku, LSPatch (rootless Xposed), LADB, Termux (apt install adb) etc, automate the ADB commands (via Tasker, let's say) on system boot-up and so on (to let's say, disable the shitty OEM/carrier app packages etc).

Check out ladb (Local ADB) - allows you to run an ADB shell directly on your phone, i.e., cable lam soruga venda. Play Store Link. It was free when I got it, appears to be a paid app now.

Recent android update broke LADB for me, Note20 ultra W8 variant, android 12. I'm patiently watching the dev's Github, pull up a chair! https://github.com/tytydraco/LADB/issues

For ADB there's https://anl.ink that provides a nice GUI on Windows. If you'll be using ADB you might also want to checkout LADB, Shizuku & LSPatch.

link : https://github.com/tytydraco/LADB

It's also open source, so you could build it yourself for free: https://github.com/tytydraco/LADB

You also have the option to add Magisk or some other root method of your choosing - yes, despite I have my gripes with the way Google is "sanitizing & normalizing" Magisk at the expense of harassing certain individuals via trolls in the community to discourage them from making their own builds of it and sharing them I guess it's still overall positive that such stuff are becoming more accessible over the years like this.

Try this. It also has a GitHub page here.

Link to GitHub LADB GitHub