Not working HTML notification on galaxy s10

I have a question about HTML notification.
I want apply colors , styles on string for notification contents.
So, I parse HTML string to SpannableString and setContentText on NotificationCompat.Builder()

<i>italic</i> <b>bold</b> text works <font color=‘blue’>color is blue</font>

It works well on virtual device.
But, on real device (in my case, gallaxy s10, android 11) it isn’t work!
just showing plain text
Is it intended works? or not?

on virtual device

on galaxy s10