the waybar command is executed two to three times

[AnthonySmithDev]

ubuntu-sway-default-settings/common/usr/share/sway/scripts/waybar.sh

Line 15 in a4a119d

waybar -c "${USER_CONFIG:-"/etc/xdg/xdg-ubuntusway/waybar/config.jsonc"}" -s "${USER_STYLE:-"/etc/xdg/xdg-ubuntusway/waybar/style.css"}" &

[AnthonySmithDev]

It can be checked before starting another waybar process.

[Sunderland93]

Does

if pgrep -x "waybar"; then
	pkill waybar
	waybar -c "${USER_CONFIG:-"/etc/xdg/xdg-ubuntusway/waybar/config.jsonc"}" -s "${USER_STYLE:-"/etc/xdg/xdg-ubuntusway/waybar/style.css"}" &
else
	waybar -c "${USER_CONFIG:-"/etc/xdg/xdg-ubuntusway/waybar/config.jsonc"}" -s "${USER_STYLE:-"/etc/xdg/xdg-ubuntusway/waybar/style.css"}" &
fi

fixed issue for you?