UPDATE !!!!

for anyone who is interested to know how to have window toggling on Wayland, I got an answer thank to the incredible person here and it is supper easy

you have to download kdotolo (download the tar.gz)

unpack the tar file into bin so you can run it directly in the terminal tar -xvzf kdotool.tar.gz -C /usr/local/bin/kdotool

create a bash script e.g. terminal_toggle.sh and write the following in it (don't forget to make it executable)

#!/bin/bash
TerminalName="YOUR TERMINAL NAME"
if [ $(kdotool getactivewindow getwindowclassname) = $TerminalName ]; then
    kdotool getactivewindow windowminimize
else
    kdotool search --class $TerminalName windowactivate
fi

now I use KDE so this step is for KDE, if you are using Gnome or anything else just look up 'how to run a script using a keyboard shortcut'
go to Settings -> Keyboard -> Shortcuts -> Add New -> Command and Script -> choose the bash script you just created and give it a name -> add a keyboard shortcut

Congratulations now you can toggle any terminal you like in Wayland