2 macOS HD data drives
Hi so I have a macbook pro and I see 2 Data partitions and I want to merge them to one. I don't know why it appears like this but it is annoying.
MacBook Pro (2017 – 2020)
If you see two, you likely have three, two are orphans and can be removed.
Open Disk Utility and check the drive list for multiple - Data volumes.
There should be the current one listed in the volume group under Macintosh HD. If you select it, you'll see a little house badge on the icon in the info pane.
If you select the others, they won't have a home badge and will show a mount point at /Volumes.
The Data volumes get orphaned when you reinstall macOS and fail to remove the previous Volume group.