Craft 3 - Plugin - Override Control Panel column values for field or field types
Depending on how complex your needs, you might do with the following:


Control Panel JS
Preparse Field


I've used this combo to alter field value display in the control panel.

For example, if a myField can contain a value of '1', then in a Preparse Field I do this:

{% if element.myField == 1%}ONE{% endif %}


And then using Control Panel JS, I can check the value of that field in the CP (in this case, checking for '1'), and then add/remove a CSS class, change the value of the HTML, etc. Part of the reason to use Preparse fields is they allow you to shorten the column header.

It's a little fiddly, but it works well.