SharePoint 2019 Column Formatting On Premise doesn't work when you add it on a Page with List Web P

SharePoint 2019 Column Formatting On Premise doesn't work when you add it on

a Page with List Web Part

 How to test 

Try this on SharePoint online and On premise

Do column formatting with this json

Then  add a page  with communication template 

Add list select the view 

check the conditional formatting is gone  on On Prem 

 check the conditional formatting is working on On Office 365

Json used  is 

{
 "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
    "debugMode": true,
    "elmType": "div",
    "txtContent": "@currentField",
    "style": {
                "background-color": {
                                        "operator": "?",
                                        "operands": [
                                        {
                                            "operator": "==",
                                            "operands": [
                                                "[$ColorCoded]",
                                                "Red"
                                            ]
                                        },
                                        "red",
                                        {
                                            "operator": "?",
                                            "operands": [
                                            {
                                                "operator": "==",
                                                "operands": [
                                                    "[$ColorCoded]",
                                                    "Blue"
                                                ]
                                            },
                                            "aqua",
                                            {
                                            "operator": "?",
                                            "operands": [
                                            {
                                                "operator": "==",
                                                "operands": [
                                                    "[$ColorCoded]",
                                                    "Green"
                                                ]
                                            },
                                            "Green",
                                            "silver"
                                        ]
                                    }
                                        ]
                                    }   

                                ]
                            },
                "color": "black",
                "padding-left": "10px"
    }

 }