Yes I know it says what to do to fix the issue in EAQ. But HOW. like where do I place it in the launch profile? at the end? Make a new line? is it suppose to be somewhere in the middle? And maybe add this info into the EAQ as well? For us noobs who are not as tech savy as others?

          ~~Thank You! <3~~

If your main menu background is compressed to a corner, and the rest of the menu is black: Add -Dforge.forceNoStencil=true to the VM arguments in the launcher.