I am unable to remove apps from my phone
How to delete apps from my phone
iPhone 6s Plus, iOS 13
review this
How to delete apps on your iPhone, iPad, and iPod touch - Apple Support
you can delete from the App Library by locating the app and tap/hold, select Delete App
(may not be applicable if your details are correct and you're on iOS 13)
or you can go to Settings > General > iPhone Storage > [app name] > Delete
If you still are unable to delete, check:
Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases > Deleting Apps
make sure that's set to 'Allow'