My Experience YMMV:
Shrink big partition: https://learn.microsoft.com/en-us/wi...a-basic-volume
Turn off Bitlocker: https://www.dell.com/support/kbdoc/e...tpm-in-windows
Burn ISO to USB
Install Ubuntu
Enroll keys: https://wiki.ubuntu.com/Dell?action=...k_ubuntu_2.pdf
Install conical kernel ppa: ppa:canonical-kernel-team/ppa
Install dell specific firmware and patches and drivers: https://www.dell.com/support/kbdoc/e...g-ubuntu-22-04
Ensure step 7 creates a new kernel entry in grub, for me it added a 6.2 kernel version. Reboot, and happy linuxing.
If you think I skipped a step or am missing a step please let me know in the comments.