New phone rom doesn't allow bloatware app removal, even at root level.

Root file manager -> /system/app -> remove whole 'uninstallable app's' whole fucking folder -> reboot -> device still works well.

Problem solved.

I usually start on stuff but get about 90-95% done and find that last 5-10% requires as much (time|energy) as the rest of the project.

Bloatware removal script in powershell for factory imaged systems currently.

Nearing completion now but always a few more features and testing rounds to go...

Working gui now but getting good UX takes time with winforms.