Josh, when starting up computer, there is a boot-setup key - usually F8 ~ F12 - can you access it ?
In there, there will be a list of 'bootorders' - one of them will be systemd-boot-manager.
Select this and it should boot into KaOS.
When booted to KaOS, at terminal
efibootmgr
From the output, there will be a BootOrder and a list of boots.
Then at terminal,
sudo efibootmgr -o xxxx,yyyyy,zzzzz
where xxxx is the systemd-boot-manager listing. Make that the first.
If that somehow disappears or there is no systemd-boot-manager at all, boot up livecd, and do the following. Now, I will refer to sda1 always here, not the livecd directories.
cp /boot/efi/systemd/systemd-bootx64.efi /efi/BOOT/BOOTx64.efi
Reminder - I am referring to your sda1 directories, not your livecd directories.
[edit] - I do not see 'Microsoft' anywhere in sda1.
Is that correct that you do not have windows OS?