This applies to any distro using Gnome 3, not specific to Fedora
After searching with no luck, I have seen the configurations of one of my friends on his Ubuntu+Gnome 3 installation using dconf-editor.
Turns out, the problem was in using "Modifiers-only switch input source" in Gnome Tweaks Tool option which I think calls the following command
setxkbmap -option grp:alt_shift_toggle "us,ar"
and that conflicts with the gnome moving window between workspace shortcut
There are two ways to do that
in both ways, you need to open gnome-tweak-tool and disable "Modifiers-only switch input source" then
First way using gsetting
just run the following command
gsettings set org.gnome.desktop.wm.keybindings switch-input-source "['<Alt>Shift_L', '<Alt>Shift_R']"
Second way using dconf-editor
install and open dconf-editor.
Press Ctrl+F and write "switch-input-source" or navigate to org.gnome.desktop.wm.keybindings and look for the same key.
Double click on the key and change it to
['<alt>Shift_L', '<alt>Shift_R']</alt></alt>
This means I will use the Alt+Left Shift and Alt+Right Shift to switch the language
This way, it will work nicely with the Alt+Ctrl+Shift+[Arrow] shortcut
Edit 1: add gsetting command