bcdedit /enum firmware does not show grub

I just installed Lubuntu 18.04 on a laptop with Windows 10 on another partition of its disk. As a final step it installed grub as well. But after booting it goes directly to Windows 10 without giving me choice.

So I searched and found out that I can achieve it with bcdedit.exe. When I run bcdedit.exe /enum firmware I can't see grub between the entries.

How can I fix it to be able to run the command bcdedit /set {bootmgr} path \EFI\ubuntu\grubx64.efi or similar. Or is there some other possibility to fix it?

Here is my BIOS settings. In the boot options there is only Windows Boot Manager and Slimptype DVD.

I was able to boot from DVD of Lubuntu 17.04 because there was a possibility Try Lubuntu without installing and I'm posting fdisk -l output

FYI: Lubuntu 18.04 LTS is no longer supported; refer https://lubuntu.me/bionic-eol/ or https://fridge.ubuntu.com/2020/08/14/ubuntu-18-04-5-lts-released/ where you'll note only Ubuntu Server, Ubuntu Desktop & Ubuntu Cloud come with 5 years of support; flavors only had shorter lives. I'd suggest using ubuntu-support-status to assess the security status of your actual install. Your question is still on-topic here, but consider how much security matters to you and the results of prior command. You're now using Ubuntu 18.04 LTS with LXDE (not Lubuntu).

Your using an EOL release may have complications; because of SHIM issues (meaning systems may not boot) new 18.04 media was created but it did not include flavors as they'd already reached EOL.

Unlike previous point releases, 18.04.6 is a refresh of the amd64 and arm64 installer media after the key revocation related to the BootHole vulnerability, re-enabling their usage on Secure Boot enabled systems. More detailed information can be found here:

https://ubuntu.com/blog/grub2-secure-boot-bypass-2021

You can always switch the default GNOME desktop to others (inc. LXDE) as I've done it many times; alas not recently as 18.04 is no longer supported by the Lubuntu team.

You must set Ubuntu first in BIOS settings for boot priority.

You currently have Windows selected, which means that Windows will boot before GRUB.

In order to get GRUB when you boot, you have to put Ubuntu before Windows in your boot priority.