Dear Kaur Albertan,
Thanks for writing back and updating with us. Apologies for the delay in the response.
As per the further updates, I would like to share my knowledge on your queries:
Query 1:
As per the conditional formula users, theFacilities Coordinator column will only show in the New List Form when theIs column is set to No. If Is column is set to Yes, then the Facilities Coordinator columnwill be hidden.
If you want Facilities Coordinator columnto show when the If Is column is set to Yes, please use the below formula:
=if([$Is] == ‘Yes’, ‘true’, ‘false’)
Query 2:
Conditional Formula will use the internal names of the Column and when you create a column in SharePoint Online, the column will have the internal name. So, I would like to suggest you use the Internal Name of the column in the Conditional Formula.
To get the internal of the column, please follow the steps:
Open the List> Settings> List Settings> Scroll down to Columns and click on the Column which you want the internal name> At the end of the URL, you will find the internal name of the column:

Conditional formula with internal name:

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Thanks a lot,
Sophia