Why does pkg insist on replacing "normal" ports with -nox11 ones?

As an experiment, I set up my newest laptop to update only via
freebsd-update and installed only pre-built packages.  (I am far more
accustomed to building FreeBSD from source, as well as updating ports
either via portmaster or by buidling my own packages, so there's a
fairly high probability that I've rather lost the plot, here.)

Now, the laptop is set up to run xdm at start-up; it's very much an
"X11" setup.

And for reference, it's running:

FreeBSD g1-96.catwhisker.org 14.2-RELEASE FreeBSD 14.2-RELEASE releng/14.2-n269506-c8918d6c7412 GENERIC amd64

And I run "pkg upgrade" on it every morning, to keep the packages
up-to-date.

A while back, I had decided that I wanted to use gimp, so I installed
that. (via "pkg install ...") without fuss.

This morning, I tried a script that I had cobbled up a while back (and
used on an older laptop) which makes use of ImageMagik's "convert"
utility -- and found that it wasn't installed on the newer laptop.

So:

| g1-96(14.2-R)[16] pkg install graphics/ImageMagick7
| Updating FreeBSD repository catalogue...
| FreeBSD repository is up to date.
| All repositories are up to date.
| Checking integrity... done (3 conflicting)
|   - libwmf-nox11-0.2.13_2 conflicts with libwmf-0.2.13_2 on /usr/local/bin/libwmf-config
|   - libwmf-nox11-0.2.13_2 conflicts with libwmf-0.2.13_2 on /usr/local/bin/libwmf-config
|   - ImageMagick7-7.1.1.26_5 conflicts with ImageMagick7-nox11-7.1.1.26_5 on /usr/local/bin/Magick++-config
| Cannot solve problem using SAT solver, trying another plan
| Checking integrity... done (0 conflicting)
| The following 6 package(s) will be affected (of 0 checked):
| 
| Installed packages to be REMOVED:
|         gimp: 2.10.38,2
|         gimp-app: 2.10.38_1,1
|         gimp-gutenprint: 5.3.4
|         libwmf: 0.2.13_2
| 
| New packages to be INSTALLED:
|         ImageMagick7-nox11: 7.1.1.26_5
|         libwmf-nox11: 0.2.13_2
| 
| Number of packages to be removed: 4
| Number of packages to be installed: 2
| 
| The operation will free 82 MiB.
| 
| Proceed with this action? [y/N]: n
| g1-96(14.2-R)[17]

I don't get it.  Why would pkg want to be installing "-nox11"
versions of things?  Even to the point of wanting to remove perfectly
functional X11 versions of things that I want to be able to use?

Thanks for any clues.

Peace,
david
-- 
David H. Wolfskill                              david@catwhisker.org
"If liberty means anything at all, it means the right to tell people
what they do not want to hear." -- George Orwell

See https://www.catwhisker.org/~david/publickey.gpg for my public key.