На сервере

dnf install tigervnc-server

Смотрим https://www.linux.org.ru/forum/general/12531593

/home/user/.vnc/xstartup

#!/bin/sh
 
setxkbmap -layout us -print | sed -e 's,\+inet[^+"]*,,' | xkbcomp - $DISPLAY
 
unset SESSION_MANAGER
unset DBUS_SESSION_BUS_ADDRESS
 
...

Deprecated Редактируем

/home/user/.vnc/xstartup

#!/bin/sh
 
export XKL_XMODMAP_DISABLE=1
unset SESSION_MANAGER
unset DBUS_SESSION_BUS_ADDRESS
 
[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
 
xsetroot -solid grey
vncconfig -iconic &
 
export XDG_CURRENT_DESKTOP="GNOME"
export XDG_MENU_PREFIX="gnome-"
 
gnome-session --session=gnome-classic --disable-acceleration-check &

vncserver :3 -geometry 1366x768 -depth 24

vncserver :3 -geometry 1680x1050 -depth 24