Q: Safari image rendering really not working, glitchy

Thank you. What worries me is that even when watching certain videos in Firefox, this happened last night. Intermittent, but worrying.

Thank you, I will also post in there. However my main problem is with Safari, as this is happening every day in Safari and with multiple websites having image loading errors, sometimes so bad that I cannot read the entire website (see example photo in my first post).