TW includes emacs.service to start an emacs server through systemd. I enable the unit file:
  systemctl enable --user emacs

after log out/log in, the server is started properly within the user session. But any attempt to start a client with a frame (-c) disconnected from the shell (-n) fails silently: 

  emacsclient -n -c   // fails immediately and returns 1.

journald shows:
 29 15:54:29 cartola emacs[29953]: xauth: (argv):1:  bad display name "wayland-0" in "extract" command
 29 15:54:29 cartola emacs[29953]: No matches found, authority file "-" not written
 29 15:54:29 cartola emacs[29953]: xauth: (argv):1:  unable to read any entries from file "(stdin)"

Curiously, if I omit the -n parameter, it kind of works. A tiny window gets created.  It seems the frame is misconfigured  as it ignored the window setting:
  emacsclient -c

Now...

If, from a shell, I restart the service:
    systemctl restart --user emacs

Then, both:
  emacsclient -n -c 
  emacsclient -c

work fine, and respect the window sizes previously set.

I suspect the problem is some missing wayland environment variable that is not configured when emacsd is first started.  After restart, when everything works, I see the /proc/<pid>/environ is much longer. In particular these are now  set in the emacs daemon environment:

XAUTHORITY=/run/user/1000/emacs/xauth
XAUTHLOCALHOSTNAME=mylaptop

I'm using the distro provided unit file:

 [0:krisman@cartola ~]$ systemctl status --user emacs
● emacs.service - Emacs text editor
     Loaded: loaded (/usr/lib/systemd/user/emacs.service; enabled; preset: disa>
     Active: active (running) since Fri 2024-03-29 15:56:04 EDT; 8min ago
       Docs: info:emacs
             man:emacs(1)