Hi @loribear1 ,
would you be able to record this and share it here so we can have a look at this? Are you using a case on your Note20 series phone? If so, can you please remove this and test it again.
To add a video please press the video icon (Insert video) available when you type a message.
Thanks for that @loribear1 . Is this always happening when you are trying to write text on that part of the screen? Would you be able to run the following diagnostics and let us know the results? To do this please head into the Samsung Members app> Support> Phone diagnostics> Touch screen, then follow the steps listed on the screen.