Ubuntu Windows 10 Dual boot with TPM & Bitlocker

I have the factory installed copy of Windows 10 with Bitlocker enabled (I don't want to disable it), the EFI partition exists (System Reserved Partition). I installed Ubuntu 18.04 so I can dual boot, while installing I chose a 3 different partitions on my SSD for "/", "/home" and swap area. I chose to install the GRUB bootloader on the SSD as a whole not a specific partition on it so I guess that would make it install GRUB in the EFI partition?

Current state: boots into GRUB menu and if I chose Windows, it asks for the recovery key every time.

I want to uninstall grub and return to the Windows Bootloader/boot manager without reinstalling Windows. Then boot by default into it and have the option to chose to go to GRUB or Ubuntu directly as this tutorial https://stomp.colorado.edu/blog/blog/2011/12/05/on-dual-booting-tpm-linux-windows-and-bitlocker/ says.