How to restore the default Ubuntu 20.04 boot screen logo?

I installed the KDE desktop over the default Ubuntu 20.04. After that I'm not seeing the default Ubuntu logo with Dell logo which is the new 20.04 feature. Instead seeing the Kubuntu logo.

How can I restore it back to the default Ubuntu Boot screen?

I tried

sudo update-alternatives --config default.plymouth 

I was able to choose the ubuntu in manual mode:

There are 6 choices for the alternative default.plymouth (providing /usr/share/plymouth/themes/default.plymouth). Selection Path Priority Status
------------------------------------------------------------ 0 /usr/share/plymouth/themes/kubuntu-logo/kubuntu-logo.plymouth 150 auto mode 1 /usr/share/plymouth/themes/bgrt/bgrt.plymouth 110 manual mode 2 /usr/share/plymouth/themes/kubuntu-logo/kubuntu-logo.plymouth 150 manual mode 3 /usr/share/plymouth/themes/spinner/spinner.plymouth 70 manual mode 4 /usr/share/plymouth/themes/ubuntu-budgie-logo/ubuntu-budgie-logo-scale-2.plymouth 149 manual mode 5 /usr/share/plymouth/themes/ubuntu-budgie-logo/ubuntu-budgie-logo.plymouth 150 manual mode
* 6 /usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth 100 manual mode
Press <enter> to keep the current choice[*], or type selection number:
5
update-alternatives: using /usr/share/plymouth/themes/ubuntu-budgie-logo/ubuntu-budgie-logo.plymouth to provide /usr/share/plymouth/themes/default.plymouth (default.plymouth) in manual mode

-- But this didn't help. How to make the ubuntu to the auto mode ?

Could someone help please? Thanks in advance!

2 Answers

This changes are also should be written into initramfs with

sudo update-initramfs -u -k all

and then reboot to check effect.

Cannot add comment yet so posting this as an answer. bgrt.plymouth is the one to choose to display manufacturer logo.