Hello
I am trying to run vncserver service on my CentOS7 VM. I have already done the tigervnc install and configured the file for it:

Unit]
Description=Remote desktop service (VNC)
After=syslog.target network.target

[Service]
#Type=simple
User=tagroot
#Group=tagroot
#WorkingDirectory=/home/tagroot
Type=forking
# Clean any existing files in /tmp/.X11-unix environment
PIDFile=/home/tagroot/.vnc/%H%i.pid
ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'
ExecStart=/sbin/runuser -l tagroot -c "/usr/sbin/vncserver %i"
#PIDFile=/home/tagroot/.vnc/%H%i.pid
ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'

[Install]
WantedBy=multi-user.target

I have noticed that the failure always occurs after the ExecStart=/sbin/runuser -l tagroot -c "/usr/sbin/vncserver %1" line or the line ExecStart=/usr/bin/vncserver_wrapper %1. Is there something in the vncserver_wrapper file that needs to be config'd?

Yes I have commented lines in it, but in trying to make it work, I have had to modify the file. I then run sudo systemctl daemon-reload, then sudo systemctl start vncserver@:1.service and finally sudo systemctl status vncserver@:1.service, and I get the following:
● vncserver@:1.service - Remote desktop service (VNC)
Loaded: loaded (/etc/systemd/system/vncserver@:1.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Thu 2023-04-06 09:05:23 EDT; 18s ago
Process: 18572 ExecStart=/sbin/runuser -l tagroot -c /usr/sbin/vncserver %i (code=exited, status=1/FAILURE)
Process: 18557 ExecStartPre=/bin/sh -c /usr/bin/vncserver -kill %i > /dev/null 2>&1 || : (code=exited, status=0/SUCCESS)
Main PID: 18572 (code=exited, status=1/FAILURE)

Clearly something in Process 18572 is causing this. Is there something I can do?