got it rooted and works fine, but there is an assist touch settings that enables a floating button after each boot. I can disable it in accessibility settings, but it is enabled again after a restart.
I have looked in the files in root, but have not found anything yet that might enable this setting each boot.
Now created a task in macrodroid with autoinput that disables it with a button.
Any slight chance of any help regarding a setting that is activated each boot?