I don’t think HA has a concept of a switch/button that is just a Toggle. There are Toggle options for various entities but not a way to show this in a dashboard.
You’re right, it doesn’t have it.
In other software I use there’s the concept of a momentary boolean. When you set it to true it immediately reverts to false. So what you achieve is to create a momentary state of true which is sufficient to trigger various things. It models the behavior of a pushbutton rather very well.
You can handle this through automation and I have places I do this. But that isn’t use friendly and having a momentary button, which looks like a push button instead of a switch is much more user friendly.