In the ubuntu desktop os all hard drive installation process; manually partitioning process to create in a gpt disk an efi partition; which contains s [closed]

Solution 1:

"Primary" vs "Logical" partitions occur only on older MBR disk partitioning records. The "Logical" partitions are a workaround to MBR's limitation of four Primary (real) partitions.

Not GPT. There is no analogous "Logical" partition in GPT.

If somebody using GPT talks about a "Logical" partition, they are likely talking about using LVM, which is a completely different topic unrelated to MBR Logical partitions.