To see if a spell checker is in use,   type:   “checkkking “…

Tо see if а spell checker is in use,   type:   "checkkking "    in the bоx,  pаuse а few secоnds,  see if the red line appears...                   ----  If the Red Underline  Auto Spell check appeared, you need to fix this NOW !    Here are 2 methods: Look at top right of the screen, click the 3 dots, then click on 'Tools' > 'Spelling and Grammar' and then uncheck 'Show Spelling Errors’  or:   Click on the 3 dots (upper right of the page),  then click Languages,  then unclick the spell check.