I guess I’ll say it here, but I have always had weird feelings about proton. They are always marked as the top of privacy alternatives to Google. I was never sold on it though and figured that the shit would hit the fan eventually

I believe that is all part of the OS and not anything a launcher can do. Unless you disable it at a system level and then have a launcher that was setup to display a custom similar menu when you did the swipe gesture. But I still think it would only work on the home screen and not inside any apps.