GRUB doesn't find theme in Ubuntu 22.04.2

Installed Ubuntu 22.04.2, haven't been aroud since 18.04, man o man! Ubuntu sure has changed a lot and has a lot of bugs even though it's an LTS version! I've been configuring it like for a week now and still it's not the Ubuntu I want it to be... Just btw.

I tried installing several GRUB themes with grub-customizer, got this problem. Also tried it manually, same thing happens. When I run sudo update-grub or sudo update-grub2 I don't get the:

Found theme: /boot/grub/themes/*theme*/theme.txt

output in the output of the command... Tried some things that came to mind, googled, but no luck!

Thanks in advance.

if your theme extracted to /boot/grub/themes/urthemname try to add the theme to /boot/grub/grub.cfg
scroll to this part:

fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='hdx,msdosx'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hdx,msdosx --hint-efi=hdx,msdosx --hint-baremetal=ahcix,msdosx  xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxxx
else
  search --no-floppy --fs-uuid --set=root xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxxx
fi
insmod gfxmenu
loadfont ($root)/boot/grub/themes/urthemname/terminus-12.pf2
loadfont ($root)/boot/grub/themes/urthemname/terminus-14.pf2
loadfont ($root)/boot/grub/themes/urthemname/terminus-16.pf2
loadfont ($root)/boot/grub/themes/urthemname/terminus-18.pf2
loadfont ($root)/boot/grub/themes/urthemname/ubuntu_regular_17.pf2
loadfont ($root)/boot/grub/themes/urthemname/ubuntu_regular_20.pf2
insmod png
set theme=($root)/boot/grub/themes/urthemname/theme.txt
export theme
if [ "${recordfail}" = 1 ] ; then
  set timeout=30
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=hidden
    set timeout=3
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.

you will find x no. or litter dont chang it
replace urthemname with your theme name, sudo update-grub
if you can not do this, try to edit /etc/default/grub and add this GRUB_THEME="/boot/grub/themes/urthemname/theme.txt" in the last line sudo update-grub

I made some progress, at least I figured out why the 'Found theme: ...' line doesn't appear. I ended up installing a fresh install of Ubuntu! I edited the /etc/default/grub file and installed the theme the usual way by hand (manually) (by adding GRUB_THEME and etc) and when I comment the line Grub console like this:

#GRUB_TERMINAL=console

it shows me the:

Found theme: /boot/grub/themes/*/theme.txt

line. But when I remove the # at the first of the line, it no longer shows the found theme line. And the thing is when I do this and reboot it doesn't show the grub menu at all, neither with theme nor without theme! So far we know the problem is probably because of this damn 'GRUB_TERMINAL=console ' line. So with that in mind, any idea why this happens?

Seriously, I wonder why nobody has had this problem before! When I first ran into it I Googled and expected that I'll find a good link that people had this issue and somebody explained how to fix it but Probably I'm the first person who reports this issue! Please help, no linux problem has taken me this long to fix and I've been on GNU/Linux for about 15years now and that's why it's a pain in my ass that I can't figure out the fix...