Not to answer your question.
Lubuntu is based on the LxQT desktop.
Your formatting seems wrong.
Grub 1 Gb (1024 Mb)
Swap 2 Gb (2048 Mb)
Formatting to gpt? Why have you got 2 gpt partitions. Why not formatted to ext4?
The easiest way is to choose "Use whole disk" (or similar). This will...