"Remove" button not always is shown when Software is open via "Show details"
Software 3.34.1 on Arch Linux
press ctrl+a to show the app grid
right click on Totem icon
select "Show details"
Result: Software opens, "Launch" button is present, "Remove" button is missing.
The same occurs if I replace Totem with other Gnome apps like Gnome Terminal and Web (Epiphany).