How to Add and use Rich Text Editor in Power App Form
If you have a column in the power app and the data type of that column is "Multi Line Rich Text" then while fetching or editing that particular entry you will get various HTML code tags in that and it doesn't look good.
The reason is Plain text column doesn't support rich text property. So you need to replace it with a rich text label.
If u want to know how then watch the above video for the quick and easy 2-step resolution...