I think Super+1 to 9 is bound to switch applications in the dash by default (at least it was in F33/GNOME 3.38).

Use dconf-editor (gui) or gsettings (cli) to check the keys `org.gnome.shell.keybindings.switch-to-application-1` to 9. The value should be something like `['<Super>1']`, change it to `[]` to unbind it and see if that fixes your issue.