Current Appian striphtml() function only stripping html entity number for few, but html entity name still remains in the given text. Html Decode

Do we have any Html decode function other than stripHtml? or any regex function to use ?

Example of My current String which I get from Portal and it will be saved in DB as

"I’m Appian resource.  Any other existing–resource?"

If I use striphtml("I’m Appian resource.  Any other existing–resource?")

I am getting same output -> "I’m Appian resource.  Any other existing–resource?"

If I use

reduce(
fn!substitute,
striphtml(ri!displayName),
merge({ "’", "–" }, { "'", "-" })
)

Then I will get proper result -> "I'm Appian resource.  Any other existing-resource?"

But I can't predict only 2 html entity names. There are many, that I need to convert and display in a!paragraph field.