J Channel Corners For Sloppy Corner?

Will a J channel corner piece fix this sloppy corner by my contractor? I am praying it does! Because I have multiple windows that are a mess.

vinyl siding - J Channel Looks Wrongly Installed And How To Fix

Outside corner post Vinyl Siding Trim at

How To Install J Channel (Vinyl Siding)

INSTALLING J-CHANNEL AROUND WINDOWS

Cinnamon Sugar Pull-Apart Bread - Joy the Baker

Vinyl J channel used at bottom holds water

The Jones Modular – Maiden Home

Vinyl siding above pitched porch roof - how to secure the bottom

lasagna bolognese – smitten kitchen