What is self-locking and what is self recovery of push button switch

[@franciscoariasa]

Thanks for your explanation. Greetings from Chile 🇨🇱

[@vladislavkaras491]

I had to buy a button switch for the Raspberry Pi project, but I did not know how to choose correct type of button. From what I have found, the self recovery switch is also called "Momentary Action Switch". Now I know, thanks for the help!