I'm not sure what you mean by "supported by". Showing tag colors, as well as emoji that you sign to colored tags, in the items list is a standard feature of Zotero — you can see an example in the screenshot right on the Zotero homepage. If that's not working for you, then you should do what poettli says and disable all of your plugins until it works again.
When I disable the add-on mentioned above, there is no "Tags" when I right-click the "top bar"(where I can customize what to show about the items directly, like Title, Publication, Year etc.). And I have checked the standard feature provided by Zotero, it is good though, but I want to see the tags without picking the specific ones. Could it be possible in case I had missed something?
https://forums.zotero.org/discussion/71802/lost-tag-selector/
https://forums.zotero.org/discussion/79348/tags-on-left-disappeared