iATKOS | United Kingdom

With the latest Sequoia update and root patch, some of my icons and other graphics on my screen have become pixelated and look like they're about to be beamed onto the Enterprise or something. What is happening and how do I fix it? The best I've come up with is that my 2012 iMac is not Metal compatible and it has something to do with that. I don't really want to go backwards to an older OS if I can help it. It is not a huge deal but once in a while a graphical element will just turn into retro 8-bit graphics.