partition – how ought to I delete a container to permit its disk area to be claimed by one other container?

On my 2017 Macbook Air, operating Huge Sur, I created a brand new “container” to put in Monterey to check it. So I’ve a dual-boot system with Huge Sur and Monterey dwelling on two separate containers (together with separate copies of all my person and different recordsdata). Right here is the diskutil listing …

/dev/disk0 (inside, bodily):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *240.0 GB   disk0
   1:                        EFI ⁨EFI⁩                     209.7 MB   disk0s1
   2:                 Apple_APFS ⁨Container disk2⁩         119.9 GB   disk0s2
   3:                 Apple_APFS ⁨Container disk1⁩         119.9 GB   disk0s3

/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +119.9 GB   disk1
                                 Bodily Retailer disk0s3
   1:                APFS Quantity ⁨for_monterey - Knowledge⁩     60.7 GB    disk1s1
   2:                APFS Quantity ⁨for_monterey⁩            15.7 GB    disk1s3
   3:              APFS Snapshot ⁨com.apple.os.update-...⁩ 15.7 GB    disk1s3s1
   4:                APFS Quantity ⁨Preboot⁩                 274.5 MB   disk1s4
   5:                APFS Quantity ⁨Restoration⁩                1.1 GB     disk1s5
   6:                APFS Quantity ⁨VM⁩                      3.2 GB     disk1s6

/dev/disk2 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +119.9 GB   disk2
                                 Bodily Retailer disk0s2
   1:                APFS Quantity ⁨BigSurHD - Knowledge⁩         64.8 GB    disk2s1
   2:                APFS Quantity ⁨Preboot⁩                 317.5 MB   disk2s2
   3:                APFS Quantity ⁨Restoration⁩                626.3 MB   disk2s3
   4:                APFS Quantity ⁨VM⁩                      1.1 GB     disk2s4
   5:                APFS Quantity ⁨BigSurHD⁩                15.3 GB    disk2s5

I am proud of Monterey, so I wish to delete Huge Sur and make my whole disk accessible to Monterey.

Can I merely go to DiskUtility and delete the Huge Sur container, thereby ending up with a single container filling my whole disk ? It is seems not; if I click on on “Partition” in DiskUtility, whereas booted into Monterey, the ‘-‘ button is greyed out for BigSur.

So should I clone my Monterey container onto an exterior disk, wipe the interior disk, and restore the Monterey container again ? I consider I can do that with DiskUtility too, utilizing disk pictures; however I am unclear on the precise steps.