./Xvfb: error while loading shared libraries: libcrypto.so.10

- [x] I read [the conda-forge documentation](https://conda-forge.org/docs/user/introduction.html#how-can-i-install-packages-from-conda-forge) and could not find the solution for my problem there.

Issue: ./Xvfb: error while loading shared libraries: libcrypto.so.10: cannot open shared object file: No such file or directory

Environment (conda list):

```
$ conda list
# packages in environment at /home/bzalmstra/.sr-mambaforge/envs/xvfb:
#
# Name Version Build Channel
kernel-headers_linux-64 2.6.32 he073ed8_15 conda-forge
pixman-cos6-x86_64 0.32.8 h9b0a68f_1105 conda-forge
sysroot_linux-64 2.12 he073ed8_15 conda-forge
xorg-x11-server-common-cos6-x86_64 1.17.4 h9b0a68f_1105 conda-forge
xorg-x11-server-xvfb-cos6-x86_64 1.17.4 h9b0a68f_1105 conda-forge
```

Details about conda and system ( conda info ):

```
$ conda info

active environment : xvfb
active env location : /home/bzalmstra/.sr-mambaforge/envs/xvfb
shell level : 1
user config file : /home/bzalmstra/.condarc
populated config files : /home/bzalmstra/.sr-mambaforge/.condarc
/home/bzalmstra/.condarc
conda version : 4.10.1
conda-build version : 3.21.6
python version : 3.9.5.final.0
virtual packages : __cuda=11.4=0
__linux=5.13.0=0
__glibc=2.31=0
__unix=0=0
__archspec=1=x86_64
base environment : /home/bzalmstra/.sr-mambaforge (writable)
conda av data dir : /home/bzalmstra/.sr-mambaforge/etc/conda
conda av metadata url : https://repo.anaconda.com/pkgs/main
channel URLs : https://conda.anaconda.org/robostack/linux-64
https://conda.anaconda.org/robostack/noarch
https://conda.anaconda.org/conda-forge/linux-64
https://conda.anaconda.org/conda-forge/noarch
https://repo.anaconda.com/pkgs/main/linux-64
https://repo.anaconda.com/pkgs/main/noarch
https://repo.anaconda.com/pkgs/r/linux-64
https://repo.anaconda.com/pkgs/r/noarch
package cache : /home/bzalmstra/.sr-mambaforge/pkgs
/home/bzalmstra/.conda/pkgs
envs directories : /home/bzalmstra/.sr-mambaforge/envs
/home/bzalmstra/.conda/envs
platform : linux-64
user-agent : conda/4.10.1 requests/2.25.1 CPython/3.9.5 Linux/5.13.0-7620-generic pop/20.04 glibc/2.31
UID:GID : 1000:1000
netrc file : None
offline mode : False
```

When installing the cdt for xvfb in an environment I am unable to properly run it:

```
$ mamba create -n xvfb xorg-x11-server-xvfb-cos6-x86_64 -c conda-forge
$ conda activate xvfb
$ $CONDA_PREFIX/x86_64-conda-linux-gnu/sysroot/usr/bin/Xvfb
/home/bzalmstra/.sr-mambaforge/envs/xvfb/x86_64-conda-linux-gnu/sysroot/usr/bin/Xvfb: error while loading shared libraries: libcrypto.so.10: cannot open shared object file: No such file or directory

$ ldd $CONDA_PREFIX/x86_64-conda-linux-gnu/sysroot/usr/bin/Xvfb
linux-vdso.so.1 (0x00007fff0fff9000)
libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007f29bbd9b000)
libcrypto.so.10 => not found
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f29bbd95000)
libGL.so.1 => /lib/x86_64-linux-gnu/libGL.so.1 (0x00007f29bbd0d000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f29bbcea000)
libpixman-1.so.0 => /lib/x86_64-linux-gnu/libpixman-1.so.0 (0x00007f29bbc43000)
libXfont.so.1 => not found
libXau.so.6 => /lib/x86_64-linux-gnu/libXau.so.6 (0x00007f29bbc3b000)
libxshmfence.so.1 => /lib/x86_64-linux-gnu/libxshmfence.so.1 (0x00007f29bba39000)
libXdmcp.so.6 => /lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f29bba31000)
libpam_misc.so.0 => /lib/x86_64-linux-gnu/libpam_misc.so.0 (0x00007f29bba2c000)
libpam.so.0 => /lib/x86_64-linux-gnu/libpam.so.0 (0x00007f29bba1a000)
libaudit.so.1 => /lib/x86_64-linux-gnu/libaudit.so.1 (0x00007f29bb9ec000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f29bb89d000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f29bb892000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f29bb6a0000)
libpcre2-8.so.0 => /lib/x86_64-linux-gnu/libpcre2-8.so.0 (0x00007f29bb610000)
/lib64/ld-linux-x86-64.so.2 (0x00007f29bbdde000)
libGLdispatch.so.0 => /lib/x86_64-linux-gnu/libGLdispatch.so.0 (0x00007f29bb558000)
libGLX.so.0 => /lib/x86_64-linux-gnu/libGLX.so.0 (0x00007f29bb522000)
libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x00007f29bb508000)
libcap-ng.so.0 => /lib/x86_64-linux-gnu/libcap-ng.so.0 (0x00007f29bb500000)
libX11.so.6 => /lib/x86_64-linux-gnu/libX11.so.6 (0x00007f29bb3c3000)
libxcb.so.1 => /lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f29bb399000)
```

It appears `Xvfb` depends on `libcrypto.so.10` and `libXFont.so.1` which is not provided anywhere. Should it be provided by the system?

Im running PopOS 20.04.