Issues with conditional formula to show or hide columns

[shashishjha]

I am trying to implement conditional formula to show or hide columns in share point online. But I am unable to figure out what's the mistake I am making.

This is my choice label: Approvers

My choice list:

Approver#1

Approver#2

Approver#3

Others

So, upon selecting Others I am expecting to see a new field called Others to be displayed.

But that's not happening.

Here is the conditional formula I am using on Others column:

=if([$Approvers]=='Others', 'true', 'false')

[#2]

Hi.
Do you allow multiple selections in your choice column? Because that is not supported with conditional formulas.
https://docs.microsoft.com/en-us/sharepoint/dev/declarative-customization/list-form-conditional-show...

That's the only idea I have concerning this topic.