Disable Pill Button in Pie?

[Louiss97]

I recently got this phone, and thanks to this forum, was able to install Magisk, get root, install Ad Away, etc.

I really hate the Android Pie pill button so I went to the setting to turn it off, and the entire gestures menu is missing from the stock Sony Xperia 9 firmware. I've got root and adb access and have tried to set keys like system_navigation_keys_enabled, but the stock rom doesn't seem to respect any of them.

Please tell me there's a way to disable that pill button on this stock rom.

[Uliwooly]

@Louiss97 

How about a different home launcher?