(2019) Does the Leviton VRCS4-M0Z work with SmartThings?

Some people have used it in the past with custom code, but over the last few months several people have reported that it is either not working reliably or no longer working. More importantly, this is an EOL device and it is unlikely to work in the future. Smartthings is in the middle of a big transition: new hub, new app, new cloud platform. Since Leviton has discontinued the device, it is unlikely that there will be a full port to the new architecture.

However, there are a number of other multi button wallmount devices which could be used to do what you are describing. I think the frustration level would be much lower going with one of those.

FAQ: Full list of buttons and remotes confirmed to work with SmartThings