Format HD in mac os extended journaled ENCRYPTED with macOS big sur

I don't think there is as the CoreStorage support in diskutil have been mostly removed. CoreStorage is required for full disk encryption on HFS+. All you can do on Big Sur is view the CS information. There is no way to modify or create according to the man page.

When you open Disk Utility click on View in the menubar and select Show All Devices.

This will now show all Disks and the indented Volumes.

When formatting you need to highlight the Disk not any of the indented Volumes

then click Erase and then you should be able to see the Mac OS Extended options

under Format.

julienfromhouplines wrote:

HFS+ is still useful for rotational drives, since APFS' performance on these mechanical disks are rather abysmal.

Just a note: From the article you linked…

"Does this mean I should avoid using APFS on my HDDs?

No, let's not throw out the baby with the bath water. APFS has loads

of really nice features, like snapshots and volume space sharing.

Managing volumes within an APFS container is a dream compared to the

older method of preallocating space to specific partitions. It's

important to understand why we might expect to see

performance differences between the two filesystems and when that might

impact your use of the filesystem, but this one performance aspect on

its own isn't enough reason to avoid it."

Just to add, Big Sur requires APFS.

julienfromhouplines wrote:

I'm asking for an external drive without macos installed on it, and which is mechanical, so HFS+ better in that case...

If that were true, I would have to reformat all my mechanical drives. 😎