Turn off Samsung Keyboard Toast Notification

[hesed]

Hello. 

I'm using Galaxy S23 Fe, which is same as my wife, but only mine has a random Samsung keyboard toast notification. 

Please tell me how to turn off the Samsung keyboard toast notification. 

I'm already checked with Nicecatch app, so it is 100% sure the ramdom toast message cause by Samsung keyboard. 

Thank you so much.

updated: There are more toast message come up with SystemUI. Is it normal? I don't have any idea why it is keep showing up randomly. Also, I don't have any item on clipboard after I got "Copied to clipboard" message.

[BlueSkies]

I don't see this toast notification anywhere. Do you have a custom UI installed?

[hesed]

No, I'm using it as it is. I thought it was like a virus, so I tested for a virus, but it's not even a virus.